2025 in paleomalacology

Several new taxa of fossil molluscs were described during the year 2025, which also saw other significant discoveries and events related to molluscan paleontology.

Ammonites

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Image
Bajocia paiardinii[1]	Sp. nov		Chandler & Cresta	Middle Jurassic (Bajocian)		Italy	A member of the family Stephanoceratidae.
Beudanticeras vinei[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Bouleiceras goyi[3]	Sp. nov		Pavia	Early Jurassic (Toarcian)	Uanei Formation	Somalia
Bouleiceras lanceolatum[3]	Sp. nov		Pavia	Early Jurassic (Toarcian)	Uanei Formation	Somalia
Goniatites amarensis[4]	Sp. nov	Valid	Korn & Ebbighausen	Carboniferous (Viséan)		Morocco	A member of the family Goniatitidae.
Herbigites[5]	Gen. et sp. nov		Becker	Devonian (Givetian)		Morocco	A member of Pharciceratoidea. The type species is H. mdourensis.
Hybopeltoceras olorizi[6]	Sp. nov		Sarti et al.	Late Jurassic (Tithonian)	Bugarone Formation	Italy	A member of the family Aspidoceratidae.
Itierella[7]	Gen. et sp. nov	Valid	Pictet, Hugon & Pierangelini	Early Cretaceous (Valanginian)	Grand Essert Formation	France	A member of the family Neocomitidae. The type species is I. melognensis.
Jurienella[8]	Gen. et comb. nov	Valid	Pictet & Bulot	Early Cretaceous (Hauterivian)		France  Switzerland	A member of the family Neocomitidae. The type species is "Breistrofferella" peyroulensis Atrops, Autran & Reboulet (1996).
Menabites (Delawarella) landmani[9]	Sp. nov	Valid	Sealey & Lucas	Late Cretaceous (Campanian)	Mancos Shale	United States ( New Mexico)	A member of the family Collignoniceratidae.
Mereoceras[10]	Gen. et comb. et sp. nov	Valid	Korn	Carboniferous (Bashkirian)		Spain	A member of Schistoceratoidea. Genus includes "Paralegoceras" percostatum Schmidt (1955) and a new species M. cantabricum.
Merocanites consequius[11]	Sp. nov	Valid	Korn	Carboniferous (Viséan)	Zrigat Formation	Morocco	A member of the family Prolecanitidae.
Oufranoceras[5]	Gen. et sp. nov		Becker	Devonian (Givetian)		Morocco	A member of the family Taouzitidae. The type species is O. perliratum.
Owenites golozubovi[12]	Sp. nov	Valid	Zakharov et al.	Early Triassic (Olenekian)		Russia ( Primorsky Krai)
Paradamesites[13]	Gen. et comb. et sp. nov	Valid	Nishimura & Maeda	Late Cretaceous (Turonian–Campanian)		Angola India Japan Madagascar Russia ( Sakhalin Oblast) South Africa Spain	A member of Desmoceratinae. The type species is "Ammonites" sugata Forbes (1846); genus also includes new species P. rectus, as well as P. compactus (Hoepen, 1921), P. rabei (Collignon, 1961), P. tsianalokyensis (Collignon, 1961).
Paradicostella[7]	Gen. et sp. nov	Valid	Pictet, Hugon & Pierangelini	Early Cretaceous (Valanginian)	Grand Essert Formation	France	A member of the family Neocomitidae. The type species is P. hautevillelompnesensis.
Preflorianites lelikovi[12]	Sp. nov	Valid	Zakharov et al.	Early Triassic (Olenekian)		Russia ( Primorsky Krai)
Protopharciceras[5]	Gen. et comb. nov		Becker	Devonian (Givetian)		Morocco	A member of Pharciceratoidea. The type species is "Pharciceras" bidentatum Petter (1959).
Xenoglyphioceras[11]	Gen. et sp. nov	Valid	Korn	Carboniferous (Viséan)	Zrigat Formation	Morocco	A member of the family Ferganoceratidae. The type species is X. eidos.

Ammonite research

• Đaković, Mrdak & Gawlick (2025) describe three assemblages of Anisian ammonoids from the Komarani and Bulog formations (Montenegro), including fossils of Ptychites rugifer, Megaphyllites obolus, Parakellnerites rothpletzi, Apleuroceras decrescens, Proteusites labiatus, Tropigastrites lahontanus, Proarcestes pannonicus, Proarcestes subtridentinus and Aristoptychites sp. extending known geographical ranges of these taxa.^[14]
• Description and study on the biostratigraphy of the ammonite assemblage from the Jurassic strata from Sierra de Reyes (Mendoza Province, Argentina) is published by Riccardi, Gulisano & Gutierrez-Pleimling (2025).^[15]
• A study on the composition of the Middle Jurassic ammonite fauna from the Shal Formation (Iran) is published by Majidifard & Wilmsen (2025).^[16]
• A study on the morphology and growth of Rehmannia richei is published by Douas Bengoudira et al. (2025).^[17]
• An ammonite specimen belonging to the genus Rehmannia, preserving paired Praetriaptychus aptychi within its body chamber and likely close to their original position, is described from the Jurassic (probably Callovian) strata from Quintanas de Hormiguera (Palencia, Spain) by Martínez, Ureta & García-Frank (2025).^[18]
• Jantschke et al. (2025) report the discovery of a diverse ammonite assemblage from the Oxfordian strata of the Sengenthal Formation (Germany).^[19]
• Cadena, Bustos & Lehmann (2025) describe bochianitid fossils from the Valanginian and Hauterivian strata of the Rosablanca Formation (Colombia), extending known range of Bochianites neocomiensis and Janenschites oosteri to the northern part of South America.^[20]
• Fosso Menkem et al. (2025) describe fossil material of Albian ammonites from the Kribi-Campo sub-Basin (Cameroon), assign the fossil-bearing deposits to the Mundeck Formation, and interpret the studied fossils as evidence of a full connection between the North and South Atlantic during the lower Albian.^[21]
• Wani (2025) studies morphology and ontogeny of Pachydesmoceras denisonianum on the basis of data from a conch from the Cretaceous Karai Formation (India), interpreted as indicating that constrictions and septal spacings are not always directly linked in the studied ammonite.^[22]
• Xing et al. (2025) describe a new invertebrate assemblage from the Cretaceous amber from Myanmar, preserving ammonites alongside terrestrial arthropods.^[23]
• A study on the ontogenetic shell development of Yabeiceras orientale, Y. cf. manasoaense, Forresteria yezoensis and F. muramotoi is published by Inose & Watanabe (2025).^[24]
• A study on shell breakages in specimens of Hoploscaphites nicolletii from the Upper Cretaceous Fox Hills Formation (South Dakota, United States), interpreted as evidence of lethal attacks by durophagous predators, is published by Tajika et al. (2025).^[25]

Other cephalopods

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Aetorhynchus[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Paleothysanoteuthidae. The type species is A. incisus.
Amblyscuthes[26]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Scuthoteuthidae. The type species is A. apterus; genus also includes A. pyrgoides.
Aspasmoteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is A. peltatus.
Astathogephyra[26]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is A. metis; genus also includes A. himatium.
Bathmidoteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is B. altus.
Beloitoceras uuemoisense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Oncoceratidae.
Camptoteuthis[26]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Turonian)	Yezo Group	Japan	A squid belonging to family Loliginidae. The type species is C. acrorhynchus; genus also includes C. cunabuli.
Catantopteryx[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Turonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is C. altilis.
Columenoceras kyushuense[28]	Sp. nov	Valid	Niko	Silurian (Ludlow)	Gionyama Formation	Japan	A member of the family Geisonoceratidae.
Curtoceras meyeri[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Cycloceras ofunatoense[30]	Sp. nov	Valid	Niko & Ehiro	Permian (Changhsingian)	Toyoma Formation	Japan
Cyrtorizoceras hariense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Oncoceratidae.
Danoceras oviforme[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Diestoceratidae.
Danoceras piersalense[27]	Comb. nov	Valid	(Teichert)	Ordovician	Moe Formation	Estonia	A member of the family Diestoceratidae; moved from "Dowlingoceras" piersalense Teichert (1930).
Danoceras vohilaidense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Diestoceratidae.
Deckeroceras balticum[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Uranoceratidae.
Discoceras paopense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Trocholitidae.
Domatoceras floweri[31]	Sp. nov	Valid	Sealey & Lucas	Permian	San Andres Formation	United States ( New Mexico)
Dowlingoceras tornense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Diestoceratidae.
Ephippiorthoceras vormsiense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Proteoceratidae.
Gerontoteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is G. acutissimus.
Gorbormoceras[27]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of Actinocerida belonging to the family Ormoceratidae. The type species is G. vohilaidense.
Gorbyoceras clathratoannulatum[27]	Comb. nov	Valid	(Roemer)	Ordovician		Poland	A member of the family Proteoceratidae; moved from "Orthoceras" clathrato-annulatum Roemer (1861).
Grossiscapula[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Maastrichtian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Scuthoteuthidae. The type species is G. angusta.
Hiiumoceras[27]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Graciloceratidae. The type species is H. hiiuense.
Hoplitopteryx[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Turonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is H. solida.
Hosholmoceras[27]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Cyrtogomphoceratidae. The type species is H. ovalis.
Isorthoceras luhai[27]	Comb. nov	Valid	(Stumbur)	Ordovician		Estonia	A member of the family Proteoceratidae; moved from "Orthoceras" luhai Stumbur (1956).
Isorthoceras saaremense[27]	Comb. nov	Valid	(Balashov)	Ordovician		Estonia	A member of the family Proteoceratidae; moved from "Hedstroemoceras" saaremense Balashov (1959).
Juroteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Turonian to Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is J. arrectus.
Kiaeroceras kaebliki[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Kiaeroceras ormsoense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Kiaeroceras urgense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Orthoteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Coniacian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is O. subaru.
Pachygephyra[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Santonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is P. callisto.
Pachypteroteuthis[26]	Gen. et 4 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida, the type genus of the new family Pachypteroteuthidae. The type species is P. adiacens; genus also includes P. mortarii, P. magnus and P. sulcatus.
Paleothysanoteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Santonian)	Yezo Group	Japan	A squid belonging to the group Oegopsida, the type genus of the new family Paleothysanoteuthidae. The type species is P. complicatus.
Placomoteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Maastrichtian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Haboroteuthidae. The type species is P. hercules.
Pseudovampyroteuthis[26]	Gen. et sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is P. hecate.
Psiloteuthis[26]	Gen. et 4 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Maastrichtian)	Yezo Group	Japan	A squid belonging to family Loliginidae. The type species is P. naucrates; genus also includes P. atalante, P. sculptus and P. transitus.
Redpathoceras saxbyense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of Ascocerida belonging to the family Probillingsitidae.
Richardsonoceras priscum[27]	Comb. nov	Valid	(Eichwald)	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Oncoceratidae; moved from "Cyrtoceras" priscum Eichwald (1860).
Rizosceras teres[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Oncoceratidae.
Saxbyoceras[27]	Gen. et sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Apsidoceratidae. The type species is S. kingpooli.
Schuchertoceras deformis[27]	Comb. nov	Valid	(Eichwald)	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Ascoceratidae; moved from "Ascoceras" deforme Eichwald (1860).
Scuthoteuthis[26]	Gen. et 4 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida, the type genus of the new family Scuthoteuthidae. The type species is S. kawataro; genus also includes S. fragilis, S. falcatus and S. tenuis.
Sepultipons[26]	Gen. et 3 sp. nov		Ikegami et al.	Late Cretaceous (Turonian to Maastrichtian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is S. castor; genus also includes S. pollux and S. gradus.
Stearoceras milleri[31]	Sp. nov	Valid	Sealey & Lucas	Permian	San Andres Formation	United States ( New Mexico)
Strandoceras kalevipoegi[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Strandoceras kohilense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Strandoceras muhvi[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Kõrgessaare Formation	Estonia	A member of the family Cyrtogomphoceratidae.
Strandoceras sulevipoegi[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)		Estonia	A member of the family Cyrtogomphoceratidae.
Streptopteryx[26]	Gen. et 2 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Maastrichtian)	Yezo Group	Japan	A squid belonging to family Loliginidae. The type species is S. glabra; genus also includes S. bidentata.
Striatocycloceras hosholmense[27]	Sp. nov	Valid	Kröger	Ordovician (Katian)	Adila Formation	Estonia	A member of the family Orthoceratidae.
Tafadnatoceras elfechtense[32]	Sp. nov	Valid	Fang et al.	Ordovician (Katian)	Upper Tiouririne Formation	Morocco	A member of the family Stereoplasmoceratidae.
Tainoceras vashutinense[33]	Sp. nov	Valid	Monakhov & Leonova	Carboniferous	Moscow Syneclise	Russia
Thalassasboides[26]	Gen. et 3 sp. nov		Ikegami et al.	Late Cretaceous (Cenomanian to Campanian)	Yezo Group	Japan	A squid belonging to the group Oegopsida and the family Pachypteroteuthidae. The type species is T. watatsumi; genus also includes T. pulchellus and T. acutus.
Trocholites baldri[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites freyjae[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Estonia Germany Sweden
Trocholites glacialis[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany Poland
Trocholites kadakaensis[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician (Darriwilian)	Väo Formation	Estonia
Trocholites luna[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites splendor[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Poland
Trocholites triangulus[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites tureki[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Estonia Sweden
Trocholites vodickai[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany Poland
Trocholites vortex[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician		Germany
Trocholites zaryensis[29]	Sp. nov	Valid	Aubrechtová & Korn	Ordovician (probably Darriwilian)		Poland
Wennanoceras remotum[34]	Sp. nov		Song et al.	Ordovician		China
Wutinoceras multiseptum[34]	Sp. nov		Song et al.	Ordovician		China	A member of Actinocerida belonging to the family Wutinoceratidae.
Xiaohenautilus chatelaini[35]	Sp. nov	Valid	Jenks et al.	Early Triassic	Dinwoody Formation	United States ( Nevada)	A member of the family Grypoceratidae.

Bivalves

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Anhapoa[36]	Gen. et sp. nov		Baumann et al.	Early Cretaceous (Berriasian)	Salvador Formation	Brazil	A member of the family Iridinidae. Genus includes new species A. munizi.
Anomia vakram[37]	Sp. nov		Venu Gopal & Chattopadhyay & Dutta	Oligocene		India	A species of Anomia.
Aulacomyella ? ludbrookae[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Austromyophorella gallowayi[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Callista ramparensis[37]	Sp. nov		Venu Gopal & Chattopadhyay & Dutta	Miocene		India	A species of Callista.
Camptonectes aramacensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Corbicellopsis exoni[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Devonomya[38]	Gen. et sp. nov	Valid	Queiroz et al.	Devonian	Ponta Grossa Formation	Brazil	Genus includes new species D. gondwanica.
Duplexium[36]	Gen. et sp. nov		Baumann et al.	Early Cretaceous (Berriasian)	Salvador Formation	Brazil	A member of the family Iridinidae. Genus includes new species D. jatobensis.
Ennucula keaseyensis[39]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A species of Ennucula.
Fissilunula coreenaensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Laevicanotia[2]	Gen. et comb. nov	Valid	Day in Jell & Cook			Australia	The type species is "Gari" elliptica Whitehouse (1925).
Leionucula doncasterensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Lopatinia prima[40]	Sp. nov	Valid	Kosenko et al.	Late Jurassic (Oxfordian–Kimmeridgian)		Russia	A member of the family Cucullaeidae.
Maccoyella allaruensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Maccoyella muttaburraensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Meleagrinella merivalensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Monopteria heaneyi[41]	Sp. nov	Valid	Yancey	Carboniferous (Gzhelian)	Holder Formation	United States ( New Mexico)	A member of Myalinida belonging to the family Monopteriidae.
Monopteria magna[41]	Sp. nov	Valid	Yancey	Carboniferous (Gzhelian)	Graham Formation	United States ( Texas)	A member of Myalinida belonging to the family Monopteriidae.
Neovenericor camachoi[42]	Sp. nov		Pérez, Cuitiño & Soto	Miocene	Gaiman Formation	Argentina	A member of the family Carditidae.
Nucula cascadensis[39]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A species of Nucula.
Palaeomoera milligani[2]	Sp. nov	Valid	Day in Jell & Cook			Australia
Peredmondia[43]	Gen. et comb. nov	Valid	Hodges	Triassic		Italy	The type species is "Anomia" favrii Stoppani (1863).
Pristigloma mistensis[39]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A member of the family Pristiglomidae.
Rhynchostreon cauveryensis[44]	Sp. nov	Valid	Chattopadhyay et al.	Late Cretaceous (Maastrichtian)	Kallnakurichchi Formation	India	A member of the family Gryphaeidae.
Sarepta nascif[39]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A member of the family Sareptidae.
Sarepta oregonensis[39]	Sp. nov	Valid	Hickman	Paleogene	Keasey Formation	United States ( Oregon)	A member of the family Sareptidae.
Streblochondria dalianensis[45]	Sp. nov		Han et al.		Taiyuan Formation	China	A member of Pectinida belonging to the family Streblochondriidae.
Streblopermia[46]	Gen. et sp. nov	Valid	Biakov	Permian (Changhsingian)		Russia	A pectinoid bivalve. Genus includes new species S. minima.
Tucetona bharati[37]	Sp. nov		Venu Gopal & Chattopadhyay & Dutta	Oligocene		India	A species of Tucetona.
Willipteria[47]	Gen. et sp. et comb. nov	Valid	Yancey	Carboniferous (Gzhelian) and Permian	Graham Formation	United States ( Texas)	Possibly a member of the family Pterineidae. The type species is W. nestelli; genus also includes "Leptodesma" falcata Boyd & Newell (2001).
Zaletrigonia mackundaensis[2]	Sp. nov	Valid	Day in Jell & Cook			Australia

Bivalve research

• Gavirneni, Ivany & Reddin (2025) calculate resting metabolic rates for fossil bivalves, and find bivalves with higher mass-specific metabolic rates to be overall more vulnerable to extinction throughout the evolutionary history of the group.^[48]
• Yang et al. (2025) report the first discovery of alatoconchid fossil material from the middle Permian strata of the Maokou Formation (Hubei, China).^[49]
• Miao et al. (2025) study the fossil record of Triassic marine bivalves, and report evidence of recovery of taxonomic richness after the Permian–Triassic extinction event during the Early Triassic, and of recovery of ecological diversity in the Middle Triassic.^[50]
• Evidence from the study of unionoid bivalve specimens from the Triassic of Poland and from the Cretaceous of Brazil and the United Kingdom, indicative of evolution of advanced anatomical traits of gills after the Triassic, is presented by Skawina & Ghilardi (2025).^[51]
• Neubauer et al. (2025) identify the pectinid genus Velata Quenstedt (1857) as validly named and a senior synonym of Eopecten, and identify the type species of the genus Velata, "Spondylus" tuberculosus Goldfuss (1835), as a junior synonym of Velata abjecta (Phillips, 1829).^[52]
• Simões et al. (2025) describe a new mollusc-dominated assemblage from the uppermost Romualdo Formation (Brazil), including freshwater bivalves previously known only from the underlying Crato Formation.^[53]
• Mougola et al. (2025) report on the composition of the bivalve assemblage from the Upper Cretaceous (Coniacian–Santonian) strata from Cap Estérias, including first records of three bivalve genera and twelve species from the Gabon Coastal Basin described to date.^[54]
• Evidence of changes of composition of Late Cretaceous bivalve communities from the Ariyalur Sub-basin (India), interpreted as likely related to changing substrate conditions, is presented by Mukhopadhyay et al. (2025).^[55]
• Evidence from the study of the fossil record of marine bivalves, indicating that the Cretaceous–Paleogene extinction event resulted in disruption of biodiversity of marine bivalves but did not fully determine their present-day diversity, is presented by Edie, Collins & Jablonski (2025).^[56]
• Villegas-Martín et al. (2025) identify a fossil wood specimens from the La Meseta Formation (Antarctica), preserved with a boring interpreted as likely produced by a large-bodied member of the genus Kuphus, and representing possible evidence of wood colonization by large-bodied shipworms in the Antarctic Peninsula during the Eocene.^[57]

Gastropods

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Acirsa fusiformis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Austria Romania	A species of Acirsa.
Acirsa koskeridouae[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Acirsa.
Acrilloscala austriaca[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Acrilloscala fortior[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Acrilloscala propugnaculum[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria Hungary Poland Romania	A wentletrap belonging to the subfamily Epitoniinae.
Adeuomphalus intermedius[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Adeuomphalus.
Adiscoacrilla anticoppii[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Adiscoacrilla walaszczyki[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Poland	A wentletrap belonging to the subfamily Epitoniinae.
Admete trigostomoides[60]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Admete.
Alvania selsoifensis[60]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Alvania.
Amaea grunerti[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Ottnang Formation	Austria Hungary	A species of Amaea.
Amalda gobanus[61]	Sp. nov	Valid	Vrinat	Eocene		France	A species of Amalda.
Anguloacrilla[58]	Gen. et comb. et 3 sp. nov	Valid	Harzhauser & Landau	Miocene		Austria Bulgaria Czech Republic Hungary Romania Turkey France?	A wentletrap belonging to the subfamily Epitoniinae. The type species is "Scalaria (Acrilla)" kimakowiczi Boettger (1896), genus also includes new species A. schwarzhansi, A. karamanensis and A. lima.
Aspella teter[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Hungary Poland	A species of Aspella.
Aylacostoma pachyspirum[63]	Sp. nov		Simone & Ramos	Neogene	Solimões Formation	Brazil	A species of Aylacostoma.
Bellardithala borzsonyensis[64]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A member of the family Costellariidae.
Bittium amibouei[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Slovakia	A species of Bittium.
Bittium badzoshviliae[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Abkhazia Azerbaijan Georgia Russia ( Chechnya Krasnodar Krai Rostov Oblast)	A species of Bittium.
Bittium foedum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Fels Formation	Austria	A species of Bittium.
Bittium grinzingense[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Czech Republic Hungary Romania Slovakia	A species of Bittium.
Bittium krenni[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Dej Formation	Czech Republic Hungary Romania Slovakia Ukraine	A species of Bittium.
Bittium merklini[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Ukraine	A species of Bittium.
Bittium nabokovorum[65]	Nom. nov	Valid	Guzhov in Harzhauser, Guzhov & Landau	Miocene		Crimea Russia ( Adygea Krasnodar Krai) Turkey	A species of Bittium; a replacement name for Bittium binodulosum Guzhov.
Bittium praescabrum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria	A species of Bittium.
Bittium rossicum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Georgia Kazakhstan Russia ( Adygea Karachay-Cherkessia Krasnodar Krai Stavropol Krai) Turkey Ukraine	A species of Bittium.
Bittium tani[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Bosnia and Herzegovina Hungary Poland Romania Slovakia Ukraine	A species of Bittium.
Bittium walaszczyki[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Korytnica Basin	Poland Romania	A species of Bittium.
Calliostoma normanensis[60]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Calliostoma.
Canariella canteriaensis[66]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella gosteliae[66]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella guidoi[66]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella jansseni[66]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Canariella vegaviejaensis[66]	Sp. nov	Valid	Groh, Hutterer & Neiber	Pliocene		Spain ( Canary Islands)	A species of Canariella.
Cathymorula exilissima[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Grund Formation	Austria Poland	A member of the family Muricidae.
Ceratostoma? steiningeri[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Gauderndorf Formation	Austria	Possibly a species of Ceratostoma.
Cerithidium iljinae[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Russia ( Krasnodar Krai)	A species of Cerithidium.
Cirsotrema microperforata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Cirsotrema.
Cirsotrema nudum[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A species of Cirsotrema.
Cirsotrema pollerspoecki[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Austria Germany	A species of Cirsotrema.
Cirsotrema schneideri[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Ottnang Formation	Austria	A species of Cirsotrema.
Clathrus corrugatus[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Korneuburg Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Coffeacypraea[68]	Gen. et comb. nov	Valid	Nützel & Schneider in Nützel et al.	Late Jurassic (Tithonian)	Crisanti Formation	Italy Czech Republic?	A member of the family Cypraeidae. The type species is "Cypraea" tithonica Di Stefano (1882); genus also includes "Cypraea" gemmellaroi Di Stefano (1882).
Coralliophila acuta[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Hungary Romania	A species of Coralliophila.
Coralliophila badensis[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Romania	A species of Coralliophila.
Coralliophila elegantula[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Coralliophila.
Coralliophila hoplites[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Czech Republic	A species of Coralliophila.
Coralliophila megaglobosa[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Coralliophila.
Coralliophila wegmuelleri[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene		Switzerland	A species of Coralliophila.
Cosediella[69]	Gen. et comb. nov	Valid	Pacaud & Hugo	Eocene (Lutetian)		France United Kingdom	A member of the family Colloniidae. The type species is C. phorculoides (Cossmann & Pissarro, 1902).
Crassimurex (Eopaziella) zoltani[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Crassimurex.
Cryptospira elenae[70]	Sp. nov	Valid	Celzard	Eocene (Bartonian)		Italy	A species of Cryptospira.
Cylindriscala bellissima[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Cylindriscala.
Cylindriscala rugata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A species of Cylindriscala.
Dyris amazonensis[71]	Sp. nov		Guimarães et al.	Miocene	Solimões Formation	Brazil
Eocypraea cantellii[72]	Sp. nov	Valid	Celzard & Alberti	Eocene		Italy
Eocypraea discrepans[73]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea inadspecta[73]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea insignis[73]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea praetermissa[73]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eocypraea teres[73]	Sp. nov	Valid	Pacaud, Loubry & Cazes	Eocene		France
Eotrivia paucivincta[72]	Sp. nov	Valid	Celzard & Alberti	Eocene		Italy
Eucypraedia hawkei[74]	Sp. nov	Valid	Celzard	Miocene	Cadell Marl	Australia
Eudaronia orthensis[59]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Eudaronia.
Euthria galopimi[75]	Sp. nov	Valid	Landau, da Silva & Harzhauser	Pliocene		Portugal	A species of Euthria.
Euthria lockleyi[75]	Sp. nov	Valid	Landau, da Silva & Harzhauser	Pliocene		Portugal	A species of Euthria.
Favartia kovacsi[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria	A species of Favartia.
Gregorioiscala ascialis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic	A species of Gregorioiscala.
Haliotis plioetrusca[76]	Sp. nov	Valid	Dominici et al.	Pliocene		Italy	A species of Haliotis.
Hemiacirsa abiaeformis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Hungary	A wentletrap belonging to the subfamily Epitoniinae.
Hemiacirsa incusa[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hemiacirsa superelongata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A wentletrap belonging to the subfamily Epitoniinae.
Hemicerithium caucasicum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Crimea Georgia Russia ( Adygea Krasnodar Krai Stavropol Krai) Turkey
Hemicerithium kovacsi[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Oligocene/Miocene		Hungary
Hemisinus amazonicus[63]	Sp. nov		Simone & Ramos	Neogene	Solimões Formation	Brazil	A species of Hemisinus.
Hirtoscala ceruchus[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Loibersdorf Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala cornucopiae[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Pińczów Formation	Austria Poland	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala diplommatinaformis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala hastata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Poland	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala holcovae[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria Hungary	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala pharos[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Bosnia and Herzegovina Bulgaria Romania	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala steiningeri[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Loibersdorf Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hirtoscala uncinata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Loibersdorf Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hopeiella kuitunensis[77]	Sp. nov	Valid	Zhu	Paleogene	Anjihaihe Formation	China	A member of the family Bulinidae.
Hyaloscala occidentalis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hyaloscala rainesi[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Hyaloscala rustica[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Indolithes viae[78]	Sp. nov	Valid	Celzard	Miocene		Indonesia	A member of the family Clavilithidae.
Islamia juliomarcosi[79]	Sp. nov	Valid	Talaván-Serna	Neogene		Spain	A species of Islamia.
Kestocenebra vermeiji[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Grund Formation	Austria Czech Republic	A member of the family Muricidae.
Levella aturensis[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A member of the family Trochaclididae.
Librariscala costatissima[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Turkey	A wentletrap belonging to the subfamily Epitoniinae.
Lodderena chattica[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Lodderena.
Lyocyclus lutetianus[80]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Lyocyclus priabonicus[80]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Lyocyclus sublutetianus[80]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Lyocyclus vanikoroiformis[80]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Lyocyclus.
Magadis ultima[59]	Sp. nov	Valid	Lozouet	Eocene		France	A member of the family Phenacolepadidae.
Marmorovula[81]	Gen. et 2 sp. nov	Valid	Celzard & Lorenz	Miocene		Indonesia	A member of the family Ovulidae. Genus includes M. volvens and M. subapicata.
Mazescala alata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Microstelma hoedemakersi[80]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Microstelma.
Muricopsis hystrix[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Bulgaria Hungary Romania	A species of Muricopsis.
Neoberingius minamichitaensis[82]	Sp. nov	Valid	Kawase	Miocene	Yamami Formation	Japan	A member of the family Buccinidae.
Nitidiscala baluki[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A wentletrap belonging to the subfamily Epitoniinae.
Nitidiscala bonfittoi[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Poland Romania Slovakia	A wentletrap belonging to the subfamily Epitoniinae.
Nitidiscala browni[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Romania	A wentletrap belonging to the subfamily Epitoniinae.
Nitidiscala connexicosta[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Czech Republic	A wentletrap belonging to the subfamily Epitoniinae.
Nozeba nervii[83]	Sp. nov	Valid	Pacaud	Paleocene (Danian)		Belgium	A species of Nozeba.
Ocenebra breitenbergeri[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Tırtar Formation	Turkey	A species of Ocenebra.
Ocenebra littoralis[67]	Nom. nov	Valid	Harzhauser, Landau & Merle	Miocene	Loibersdorf Formation	Austria	A species of Ocenebra; a replacement name for Murex (Ocinebrina) erinaceus sublaevis Schaffer (1912).
Ocenebra scorpio[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Grund Formation	Austria	A species of Ocenebra.
Ocinebrina bellissima[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Romania	A species of Ocinebrina.
Ocinebrina s.l. praescalaris[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Czech Republic	A member of the family Muricidae.
Ocinebrinopsis[67]	Gen. et comb. et 4 sp. nov	Valid	Harzhauser, Landau & Merle	Miocene		Austria Bosnia and Herzegovina Bulgaria Czech Republic France Hungary Italy Moldova Poland Romania Slovakia Turkey Ukraine	A member of the family Muricidae. The type species is "Ocenebra" orientalis Friedberg (1928); genus also includes "Ocinebrina" bertai Kovács (2020), "Murex" crassilabiatus Hilber (1879), "Murex (Occenebra)" credneri Hoernes & Auinger (1885), "Ocinebrina" deaki Kovács, Leél-Őssy & Vicián (2023), "Murex (Occenebra) sublavatus" var. grundensis Hoernes & Auinger (1885; raised to the rank of the species O. grundensis), "Tritonium" striatum Eichwald (1830), "Pollia" weinsteigensis Hoernes & Auinger (1890), "Fusus" coelatus (Dujardini, 1837) and "Murex" dertonensis Bellardi (1873), as well as new species O. aperta, O. dominicii, O. gregaria and O. subnuda.
Opaliopsis compacta[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A wentletrap belonging to the subfamily Nystiellinae.
Oxycypraea bicaudata[72]	Sp. nov	Valid	Celzard & Alberti	Eocene		Italy
Papuliscala aquaensis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A species of Papuliscala.
Papuliscala hoffmani[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A species of Papuliscala.
Papuliscala maysi[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic Poland	A species of Papuliscala.
Papuliscala parvicancellata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria Poland	A species of Papuliscala.
Papuliscala praeelongata[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A species of Papuliscala.
Parviscala abdita[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Parviscala badensis[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Parviscala lacinia[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Dej Formation	Austria Bosnia and Herzegovina Hungary Romania Ukraine	A wentletrap belonging to the subfamily Epitoniinae.
Parviscala paratethyca[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Parviturbo hinxensis[59]	Sp. nov	Valid	Lozouet	Miocene		France	A species of Parviturbo.
Pazinotus aster[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria Czech Republic Hungary Poland	A species of Pazinotus.
Pazinotus pulcher[62]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Baden Formation	Austria	A species of Pazinotus.
Pithocerithium mediolanionense[65]	Nom. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Austria Croatia	A replacement name for Cerithium imperfectum Sieber (1937).
Protorotella gigas[84]	Sp. nov	Valid	Amano in Amano et al.	Miocene	Sazen Formation	Japan	A member of the family Trochidae.
Pterotheca xiushanensis[85]	Sp. nov	Valid	Li et al.	Silurian (Telychian)	Xiushan Formation	China
Pterotheca yongshunensis[85]	Sp. nov	Valid	Li et al.	Silurian (Telychian)	Xiushan Formation	China
Pterynopsis guzhovi[67]	Nom. nov	Valid	Harzhauser, Landau & Merle	Miocene		Ukraine	A species of Pterynopsis; a replacement name for Murex affinis Eichwald (1830).
Punctiscala moravica[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Baden Formation	Czech Republic	A wentletrap belonging to the subfamily Epitoniinae.
Pusia crassiornata[64]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A species of Pusia.
Pusia palmulleri[64]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A species of Pusia.
Pusia pseudomoravica[64]	Sp. nov	Valid	Biskupič & Kovács	Miocene	Lajta Limestone Formation	Hungary	A species of Pusia.
Scala polonica[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Pińczów Formation	Poland	A wentletrap belonging to the subfamily Epitoniinae.
Seguenzia lahitetensis[59]	Sp. nov	Valid	Lozouet	Miocene		France	A species of Seguenzia.
Seguenzia macrodentata[59]	Sp. nov	Valid	Lozouet	Eocene		France	A species of Seguenzia.
Seila quinquecarinata[60]	Sp. nov	Valid	Bouchard et al.	Pleistocene (Gelasian)		France	A species of Seila.
Sheppardiconcha turritella[63]	Sp. nov		Simone & Ramos	Neogene	Solimões Formation	Brazil	A member of the family Pachychilidae.
Sinoplanorbis junggarensis[77]	Sp. nov	Valid	Zhu	Paleogene	Anjihaihe Formation	China	A member of the family Bulinidae.
Skenea castinensis[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Skenea.
Skenea enricoi[86]	Sp. nov	Valid	Bongiardino et al.	Pliocene		Italy	A species of Skenea.
Skenea touzini[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Skenea.
Sthenorytis simoni[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene		Germany	A wentletrap belonging to the subfamily Epitoniinae.
Subuliscala breitenbergeri[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria Hungary	A wentletrap belonging to the subfamily Epitoniinae.
Subuliscala pseudobanoni[58]	Sp. nov	Valid	Harzhauser & Landau	Miocene	Grund Formation	Austria	A wentletrap belonging to the subfamily Epitoniinae.
Theodiscella[65]	Nom. nov	Valid	Harzhauser, Guzhov & Landau	Miocene to Pleistocene		Austria Azerbaijan Bulgaria Czech Republic Georgia Hungary Italy Moldova Poland Romania Russia ( Adygea Chechnya Karachay-Cherkessia Stavropol Krai) Slovakia Spain Turkey Ukraine	A member of the family Potamididae; a replacement name for Theodisca Harzhauser, Guzhov & Landau (2023).
Thericium basilicum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Moldova
Thericium bursucense[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Moldova
Thericium chamaeleo[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Dej Formation	Romania
Thericium miodacicum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Hungary Romania
Thericium posidoniaphilum[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene	Baden Formation	Austria Hungary Poland
Thericium putzgruberi[65]	Nom. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Austria	A replacement name for Cerithium europaeum May. var. acuminata Schaffer (1912).
Thericium vovkotrubense[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Ukraine
Thericium zhizhchenkoi[65]	Sp. nov	Valid	Harzhauser, Guzhov & Landau	Miocene		Russia ( Adygea Karachay-Cherkessia Krasnodar Krai Stavropol Krai)
Timbellus kovacsi[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene		Czech Republic Romania	A species of Timbellus.
Timbellus weinmannae[67]	Sp. nov	Valid	Harzhauser, Landau & Merle	Miocene	Dej Formation	Austria Italy Romania	A species of Timbellus.
Trochaclis inflata[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Trochaclis.
Trochaclis pustulosa[59]	Sp. nov	Valid	Lozouet	Oligocene		France	A species of Trochaclis.
Trochocerithium oritatense[84]	Sp. nov	Valid	Amano in Amano et al.	Miocene	Sazen Formation	Japan	A member of the family Plesiotrochidae.
Zoltania[62]	Gen. et comb. nov	Valid	Harzhauser, Landau & Merle	Miocene		Austria France Hungary Romania	A member of the family Muricidae. The type species is "Purpura" styriaca Hilber (1879).

Gastropod research

• A study on the evolution of the columellar folds in gastropods, based on data from extant and fossil taxa, is published by Vermeij (2025).^[87]
• A study on the diversity of Permian and Triassic gastropods is published by Dominici (2025), who interprets increase of diversity of carnivorous gastropods during the Middle-Late Triassic transition as related to evolution of reef ecosystems at the same time.^[88]
• Evidence from the study of fossil shells of Cathaica orithyia from the Chinese Loess Plateau, indicative of a link between shell morphology and changes in climatic and environmental conditions linked to changes of Asian summer monsoons over the past 470,000 years, is presented by Shen et al. (2025).^[89]

Other molluscs

Name	Novelty	Status	Authors	Age	Type locality	Location	Notes	Images
Emo[90]	Gen. et sp. nov	Valid	Sutton et al.	Silurian	Coalbrookdale Formation	United Kingdom	An early aculiferan related to heloplacids. The type species is E. vorticaudum.
Punk[90]	Gen. et sp. nov	Valid	Sutton et al.	Silurian	Coalbrookdale Formation	United Kingdom	An early aculiferan related to modern aplacophorans. The type species is P. ferox.

Other molluscan research

• Redescription of the rostroconch species Hoarepora parrishi, based on data from new fossil material from the Moscovian Korobcheevo Formation (Ryazan Oblast, Russia) and Gzhelian Amerevo Formation (Moscow Oblast, Russia) that extends known geographical range of the species, is published by Mazaev (2025).^[91]

General research

• Evidence from the study of the fossil record of marine bivalves and gastropods from the Permian-Triassic transition, interpreted as indicating that taxonomic homogenization of the studied molluscs in marine communities after the Permian–Triassic extinction event was related to environmental changes that resulted in expansion of the preferred habitat of the survivors of extinction, is presented by Al Aswad et al. (2025).^[92]
• Evidence from the study of the fossil record of Early Jurassic gastropods and bivalves from the epicontinental seas of the north-western Tethys Ocean, indicative of a relationship between the thermal suitability of the studied animals and changes of their occupancy in response to climate changes during the Pliensbachian and Toarcian, is presented by Reddin et al. (2025).^[93]
• Description of the assemblage of ammonites and inoceramid bivalves from the Albian strata from the Mangyshlak Anticlinorium (Kazakhstan) is published by Kennedy & Walaszczyk (2025).^[94]
• Aiba & Mochizuki (2025) describe new fossil material of ammonites and inoceramid bivalves from the Taneichi Formation (Japan), and interpret the composition of the studied assemblage as indicating that the middle Member of the Taneichi Formation was deposited during the Santonian–early Campanian.^[95]
• Fergusen, Reed & García-Bellido (2025) determine lost pigmentation patterns in molluscan specimens from the Miocene Cadell Formation (Australia), interpret the pigmentation patterns of Lophiotoma murrayana as supporting its reassignment from the genus Lucerapex to Lophiotoma, and interpret the pigmentation of Maoricolpus murrayanus as similar to the pigmentation of extant Maoricolpus roseus, strengthening the arguments that the two species are synonymous.^[96]