List of mosasaur-bearing stratigraphic units

This is a list of stratigraphic units from which mosasaur body fossils have been recovered. Units listed are all either formation rank or higher (e.g. group). Formations are listed by continent, and alphabetically within the individual lists.

Africa

Name	Age	Location	Genera and species
Akrabou Formation	Turonian	Morocco	Tethysaurus nopcsai
Bentiaba River[1]	Maastrichtian	Angola	Prognathodon kianda[2] Liodon sp.[1] Halisaurus sp.[1] Platecarpus ptychodon[1] Phosphorosaurus sp.[1] Globidens phosphaticus[3] Mosasaurus hoffmannii[4] Prognathodon saturator[4]
Bololo[5]	Maastrichtian	Congo-Kinshasa	Halisaurus sp.[5] Mosasaurus sp.[5]
Dukamaje Formation[6]	Maastrichtian	Niger Nigeria	Halisaurus sp.[6] Igdamanosaurus aegyptiacus[6] Platecarpus sp.[6] Angolasaurus sp.[6] Plioplatecarpus sp.[6] Goronyosaurus sp.[6] Goronyosaurus nigeriensis[7]
Duwi Formation[8]	Maastrichtian	Egypt	Mosasauridae indet.[9] Globidens phosphaticus[8] Igdamanosaurus aegyptiacus[8]
Farin-Doutchi Formation[10]	Maastrichtian	Niger	Pluridens walkeri[10]
Lapurr Sandstone	Campanian-Maastrichtian	Kenya	Mosasauria indet.[11]
Ouled Abdoun Basin[8]	Maastrichtian	Morocco	Eremiasaurus heterodontus[12] Liodon anceps[8] Khinjaria acuta Mosasaurus sp.[8] Mosasaurus beaugei[8] Stelladens mysteriosus Globidens phosphaticus[8] Globidens simplex Xenodens calminechari Halisaurus arambourgi[13] Pluridens serpentis Igdamanosaurus aegyptiacus[8] Platecarpus ptychodon[8] Gavialimimus almaghribensis Prognathodon sp.[14] Prognathodon curii[15] Thalassotitan atrox Carinodens belgicus[15] Carinodens minalmamar Russellosaurina indet.[8]
Itombe Formation[16]	Coniacian	Angola	Mosasaurus sp.[16] Angolasaurus bocagei[16] Halisaurinae indet.[16]
Umzamba Formation[17]	Santonian	South Africa	Mosasaurus sp.[17]

Antarctica

Name	Age	Location	Genera and species
López de Bertodano Formation[18]	Maastrichtian	Argentine Antarctica British Antarctic Territory Chilean Antarctic Territory	Mosasaurus sp.[19] Kaikaifilu hervei[18]
Santa Marta Formation[20]	Late Campanian	Argentine Antarctica British Antarctic Territory Chilean Antarctic Territory	Taniwhasaurus antarcticus[20]
Snow Hill Island Formation[21]	Maastrichtian	Argentine Antarctica British Antarctic Territory Chilean Antarctic Territory	Tylosaurinae indet.[21]

Asia

Name	Age	Location	Genera and species
Adaffa Formation[22]	Early Campanian	Saudi Arabia	Prognathodon sp.[22] Plioplatecarpinae indet.[22]
Amminadav Formation[23]	Early Cenomanian	Palestinian Territory	Haasiasaurus gittelmani[23]
Davutlar Formation[24]	Late Maastrichtian	Turkey	Mosasaurus hoffmannii[24]
Hakobuchi Formation	Early Maastrichtian	Japan	Mosasaurus hobetsuensis Phosphorosaurus ponpetelegans
Izumi Group[25]	Late Campanian - Maastrichtian	Japan	Kourisodon sp.[25] Mosasaurus sp.[26] Mosasaurus sp. "B"[25] Mosasaurinae indet.[25]
Kashima Formation[27]	Late Santonian	Japan	Taniwhasaurus mikasaensis[27]
Mishash Formation[28]	Campanian	Israel	Prognathodon curii[28]
Muwaqqar Chalk Marl Formation[29]	Late Maastrichtian	Jordan	Mosasaurus hoffmannii[29] Mosasaurus sevciki[30] Carinodens palistinicus[30] Harranasaurus khuludae[30] Prognathodon hashimi (=Tenerasaurus)[30] Prognathodon hudae[30] Prognathodon primus[30] Clidastes sp.[29] Platecarpus sp.[29] Liodon anceps[29] Tylosaurinae indet.[29]
Phosphorite Unit Formation[30][31]	Late Campanian - Early Maastrichtian	Jordan	Mosasaurus sp.[30] Globidens hisaensis[30] Globidens sp.[31] Prognathodon abyadensis[30] Prognathodon currii[30] Prognathodon giganteus[31] Clidastes sp.[30] Halisaurus sp.[30][31] Platecarpus ptychodon[31] Platecarpus sp.[30] Liodon anceps[30] Mosasauridae indet.[30][32]
Syria (various localities)[33]	Late Campanian	Syria	Mosasauridae indet.[33] Mosasaurus lemmonieri[33] Prognathodon giganteus[33] Liodon anceps[33] Globidens sp.[33] Platecarpus ptychodon[33] Plioplatecarpinae indet.[33]
Toyajo Formation[34]	Campanian/Maastrichtian	Japan	Megapterygius wakayamaensis[34]

Europe

Name	Age	Location	Genera and species
Ahlen Formation[35]	Late Campanian	Germany	Clidastes sp.[35]
Argille di Viano Formation[36]	Cretaceous	Italy	Mosasaurus hoffmannii[36]
Baculites Limestone Formation[37]	Late Maastrichtian	France	Prognathodon sp.[37]
Bakla Hill[38]	Maastrichtian	Ukraine	Carinodens belgicus[38] Liodon sp.[38]
Båstad Basin[39]	Campanian	Sweden	Plioplatecarpus sp.[39]
Chalk Group[40]	Cenomanian	United Kingdom	"Mosasaurus" gracilis[40]
Craie de Ciply Formation[8]	Maastrichtian	Belgium	Mosasauridae indet.[8] Mosasaurus hoffmannii[41] Prognathodon solvayi[41] Phosphorosaurus ortliebi[41] Plioplatecarpus houzeaui[41] Hainosaurus bernardi[41]
Craie de Meudon Formation[42]	Late Campanian	France	Hainosaurus sp.[42]
Craie de Spiennes Formation[43]	Late Campanian	Belgium	Globidens dakotensis[43] Prognathodon solvayi[43] Prognathodon giganteus[43]
Danish White Chalk Formation[44]	Maastrichtian	Denmark	Mosasaurus hoffmannii[44] Mosasaurus sp.[44] Plioplatecarpus sp.[44]
Glauconie de Lonzée Formation[45]	Santonian	Belgium	Hainosaurus sp.[45]
Gulpen Formation[46]	Late Campanian - Maastrichtian	Belgium The Netherlands	Mosasaurus sp.[46] Prognathodon solvayi[46] Prognathodon saturator[47]
Grünsandstein Formation[48]	Cenomanian	Germany	Liodon anceps[48]
Hesseltal Formation[49]	Late Cenomanian/Early Turonian	Germany	Mosasauroidea indet.
Kajlâka Formation[50]	Late Maastrichtian	Bulgaria	Mosasauridae indet.[50] Mosasaurus hoffmannii[50]
Kristianstad Basin[51]	Santonian - Maastrichtian	Sweden	Clidastes propython[52] Dollosaurus sp.[53] Eonatator sternbergii[54] Hainosaurus sp.[53] Platecarpus sp.[51] Taniwhasaurus ivoensis[55]
Lagerdorf Formation[56]	Late Santonian	Germany	Clidastes sp.[56]
Maastricht Formation[57]	Maastrichtian	The Netherlands	Mosasauridae indet.[57] Mosasaurus hoffmannii[57] Carinodens belgicus[50] Prognathodon saturator[50] Liodon sectorius[57] Plioplatecarpus marshi[50]
Nay Marls Formation[8]	Early Campanian - Late Maastrichtian	France	Liodon compressidens[8] Hainosaurus sp.[8] Prognathodon sp.[8]
Opoka Formation[58]	Late Campanian - Late Maastrichtian	Poland	Mosasaurus lemmonieri[58] Mosasaurus hoffmannii[58] Liodon anceps[58] Prognathodon sp.[58] Hainosaurus sp.[58]
Polunino[59]	Late Campanian	Volgograd Oblast Russia	Mosasaurus sp.[59] Prognathodon sp.[59] Platecarpus sp.[59] Dollosaurus sp.[59] Hainosaurus sp.[59] Carinodens belgicus[38] Mosasauridae indet.[38]
Raspay Formation[60]	Late Maastrichtian	Spain	Prognathodon sp.[60]
Rybushka Formation[61]	Early Campanian	Saratov Oblast Russia	Prognathodon sp.[61] Clidastes sp.[61]
Scaglia Rossa Formation[62]	Late Campanian - Maastrichtian	Italy	Mosasaurus sp.[62] Mosasaurus hoffmannii[36] Prognathodon sp.[36]
Scaglia Rossa Veneta Formation[63]	Early Turonian	Italy	Romeosaurus sorbinii[63] Romeosaurus fumanensis[63]
Trevino[64]	Maastrichtian	Spain	Mosasaurinae indet.[64] Prognathodon solvayi[64] Platecarpus tympaniticus[64] Liodon anceps[64]
Vitoria Formation[65]	Late Campanian	Spain	Liodon sectorius[65] Tylosaurus sp.[66]
Vomb Trough[53]	Santonian - Maastrichtian	Sweden	Hainosaurus sp.[53]

North America

Name	Age	Location	Genera and species
Arcadia Park Shale Formation[67]	Middle Turonian	Texas United States	Russellosaurus coheni[67]
Bearpaw Shale Formation[68]	Late Campanian	Alberta, Saskatchewan Canada Montana United States	Prognathodon overtoni[68] Mosasaurus conodon[69] Plioplatecarpus primaevus[69] Clidastes sp.[70] Mosasaurus missouriensis[71]
Black Creek Group[72]	Early-Middle Campanian	North Carolina, South Carolina United States	Mosasaurus sp.[72] Platecarpus sp.[72] Tylosaurus sp.[72][73]
Blufftown Formation[74]	Campanian	Georgia United States	Mosasauridae indet.[74] Prognathodon sp.[74] Halisaurus sp.[74] Platecarpus sp.[74]
Carlile Shale	Middle Turonian	Kansas United States	Mosasauridae indet.[75] Russellosaurinae indet.[76]
Cerro del Pueblo Formation[77]	Late Campanian	Mexico	Clidastes sp.[77]
Donoho Creek Formation	Middle Campanian	South Carolina United States	Tylosaurus sp.[73] Mosasauridae indet.[73]
Eutaw Formation[78]	Early Campanian	Alabama, Mississippi United States	Clidastes liodontus[78] Mosasaurus sp.[71]
Hornerstown Formation[79]	Maastrichtian	New Jersey United States	Liodon sp.[79] Mosasaurus hoffmanni (=M.maximus)[80][81] Plioplatecarpus sp.[82]
Kamp Ranch Limestone Formation[83]	Middle Turonian	Texas United States	Dallasaurus turneri[83]
Lewis Shale Formation[84]	Campanian	Colorado United States	Prognathodon overtoni[84]
Mancos Shale Formation[85]	Early Campanian	Colorado United States	Prognathodon stadtmani[85]
Marshalltown Formation[86]	Middle Campanian	New Jersey United States	Clidastes iguanavus[86] Halisaurus sp.
Merchantville Formation[87]	Early Campanian - Maastrichtian	New Jersey, Delaware United States	Clidastes iguanavus[87] Mosasaurus sp.[88] Halisaurus platyspondylus[89]
Mesaderve Formation[90]	Campanian	Wyoming United States	Platecarpus sp.[90] Tylosaurinae indet.[91]
Mooreville Chalk Formation[92]	Late Santonian	Alabama United States	Clidastes propython[92] Clidastes "moorevillensis" Eonatator sternbergii[92] Globidens alabamaensis[93]
Moreno Formation[94]	Maastrichtian	California United States	Plesiotylosaurus crassidens[94] Plotosaurus tuckeri[95] Plotosaurus bennisoni[96]
Mount Laurel Formation[97]	Maastrichtian	New Jersey, Delaware United States	Halisaurus platyspondylus[97] Mosasaurus maximus[88] Mosasaurus sp.[88]
Navesink Formation[98]	Maastrichtian	New Jersey United States	Mosasaurus sp.[98] Mosasaurus conodon[99] Mosasaurus maximus[98] Prognathodon rapax Halisaurus platyspondylus[98] Mosasauridae indet.[100] Liodon sectorius[101]
New Egypt Formation[102]	Late Maastrichtian	New Jersey United States	Mosasaurus maximus[102] Prognathodon rapax[103]
Niobrara Formation[104]	Coniacian - Campanian	Kansas United States	Eonatator sternbergii[105] Tylosaurus nepaeolicus Tylosaurus proriger Plesioplatecarpus planifrons Platecarpus tympaniticus Clidastes liodontus Clidastes propython
Ojinaga Formation[106]	Turonian	Mexico	Tylosaurus kansasensis[106]
Owl Creek Formation[107]	Late Maastrichtian	Missouri United States	Mosasaurus hoffmannii[107]
Peedee Formation[108]	Early-Late Maastrichtian	North Carolina, South Carolina United States	Halisaurus sp.[108] Mosasaurus cf. beaugei[108] Mosasaurus cf. hoffmanni[108] Prognathodon cf. solvayi[108] ?Prognathodon sp.[73] Prognathodontini indet.[108] Tylosaurus sp.[73] Mosasauridae indet.[73]
Pen Formation[109]	Middle Santonian	Texas United States	Clidastes liodontus[109] Ectenosaurus sp.[109]
Pender Formation[110]	Late Santonian	British Columbia Canada	Kourisodon puntledgensis[110] Mosasauridae indet.[110]
Pierre Shale Formation[111]	Campanian	Nebraska, South Dakota United States Manitoba Canada	Mosasaurus sp.[111] Clidastes sp.[112] Clidastes propython[71] Tylosaurus proriger[112] Tylosaurus pembinensis[113] Globidens alabamaensis[71] Globidens dakotensis[71] Globidens schurmanni[114] Platecarpus sp.[71] Mosasaurus missouriensis[71] Jormungandr walhallaensis[115] Plioplatecarpus primaevus[71] Prognathodon overtoni[116] Latoplatecarpus nichollsae[113] Latoplatecarpus willistoni[117]
Ripley Formation[118]	Late Campanian	Tennessee United States	Mosasaurus maximus[118] Prognathodon sp.[118] Plioplatecarpus sp.[118]
Selma Formation[92]	Santonian	Alabama, Mississippi United States	Globidens alabamaensis[92] Prognathodon sp.[92] Clidastes propython[92] Eonatator sternbergii[92] Platecarpus sp.[92] Tylosaurus sp.[92]
Severn Formation[119]	Maastrichtian	Maryland United States	Mosasauridae indet.[119] Mosasaurus maximus[119] Mosasaurus conodon[119] Prognathodon rapax[119] Halisaurus platyspondylus[119]
St. Mary River Formation[120]	Campanian	Alberta Canada	Plioplatecarpus sp.[120]
Tar Heel/Coachman Formation[121]	Early Campanian	North Carolina, South Carolina United States	Prognathodon sp.[121] Platecarpus sp.[121] Halisaurus sp.[121] Tylosaurus sp.[72][73] Mosasauridae indet. (="Mosasaurus carolinensis")[73]
Vermillion River Formation[122]	Campanian	Manitoba Canada	Platecarpus sp.[122] Tylosaurus sp.[122]
Wolfe City Formation[123]	Middle Campanian	Texas United States	Mosasaurus missouriensis[123] Globidens dakotensis[123]

Oceania

Name	Age	Location	Genera and species
Conway Formation[124]	Campanian	New Zealand	Taniwhasaurus oweni[124]
Laidmore Formation[125]	Campanian - Maastrichtian	New Zealand	Prognathodon waiparaensis[125]
Miria Marl Formation[126]	Maastrichtian	Australia	Plioplatecarpinae indet.[126] Mosasauridae indet.[126]
Molecap Greensand Formation[126]	Cenomanian - Santonian	Australia	Platecarpus sp.[126] Plioplatecarpinae indet.[127]
Tahora Formation[128]	Campanian - Maastrichtian	New Zealand	Moanasaurus mangahouangae[128]
Takatika Grit		Chatham Islands	Mosasauridae indet.

South America

Name	Age	Location	Genera and species
Alcântara Formation[129]	Late Albian - Early Cenomanian	Brazil	Mosasauridae indet.[129]
Calumbi Formation[129]	Santonian - Late Campanian	Brazil	Globidens belgicus[129] Mosasaurus (Leiodon) anceps[129] Mosasaurus beaugei[129] Platecarpus sp.[129] Prognathodon sp.[129] Plioplatecarpus sp.[129] Angolasaurus sp.[129]
Cotinguiba Formation[129]	Early Cenomanian - Middle Coniacian	Brazil	Platecarpus sp.[129] Angolasaurus sp.[129]
Gramame Formation[129]	Maastrichtian	Brazil	Globidens belgicus[129] Globidens phosphaticus[129] Globidens sp.[129] Mosasaurus cf. anceps[129] Mosasaurus cf. beaugei[129] Mosasaurus beaugei[129] Eremiasaurus cf. heterodontus[129] Platecarpus sp.[129] Prognathodon sp.[129]
Itamaracá Formation[129]	Middle Campanian - Early Maastrichtian	Brazil	Carinodens belgicus[129] Globidens sp.[129] Mosasaurus anceps[129] Mosasaurus beaugei[129] Eremiasaurus cf. heterodontus[129] Platecarpus sp.[129] Prognathodon sp.[129] Plioplatecarpus sp.[129]
La Frontera Formation[130]	Late Turonian	Colombia	Yaguarasaurus columbianus[130] Mosasauridae indet.[130]
Napo Formation	Turonian-Late Coniacian	Ecuador	Mosasauridae indet.
Olini Group, Nivel de Lutitas y Arenas[131]	Campanian	Colombia	Eonatator coellensis[131]
Quiriquina Formation[132]	Late Maastrichtian	Chile	Halisaurus sp. (=Plotosaurus)[133][132] Mosasaurinae indet.[134] Plioplatecarpinae indet.[135] Tylosaurinae indet.[135]
Roca Formation[136]	Maastrichtian	Argentina	Mosasaurinae indet.[136]
Vivián Formation[137]	Santonian	Peru	Halisaurus sp.[137]