Solemys

Solemys is an extinct genus of helyochelydrid stem-turtle known from the Late Cretaceous (late Campanian-early Maastrichtian) of southern France and eastern Spain.^[1][2][3][4]

Solemys Temporal range: Late Cretaceous Campanian–Maastrichtian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Pantestudines
Clade:	Testudinata
Family:	†Helochelydridae
Genus:	†Solemys de Lapparent de Broin and Murelaga 1996
Type species
Solemys gaudryi Matheron, 1869

Taxonomy

Two species are known, the type species Solemys gaudryi (Matheron, 1869) and S. vermiculata de Lapparent de Broin and Murelaga, 1996. The former was originally assigned to the Cenozoic turtle genus Apholidemys by Matheron (1869),^[5] but de Lapparent de Broin and Murelaga (1996) recognized it as a stem turtle distinct from Apholidemys and renamed it Solemys.^[6]

The following cladogram displays the phylogenetic relationships of Solemys according to Tong et. al. 2023:^[7]

Mesochelydia †Kayentachelys †Condrochelys †Heckerochelys †Eilanchelys †Indochelys Perichelydia †Spoochelys †Meiolaniformes †Sichuanchelyidae †Helochelydridae †Aragochersis †Solemys †Solemys gaudryi †Solemys vermiculata †Helochelydra †Naomichelys Testudines (crown group) †Paracryptodira †Haemys †Baenidae †Neurankylus †Dinochelys †Glyptops †Arundelemys †Trinitichelys †Uluops †Lakotemys †Pechemys †Toremys †Dorsetochelys †Pleurosternon †Compsemydidae †Platychelyidae Pleurodira (side-necked turtles) †Solnhofia †Santanachelys †Thalassochelydia †Macrobaenidae †Xinjiangchelyidae crown-group Cryptodira Testudinoidea (pond turtles, tortoises, etc) Chelydroidea (snapping turtles) Panchelonioidea (sea turtles) †Siamochelys †Sinaspideretes †Basilochelys †Nanhsiungchelys †Basilemys †Adocus †Shachemys Trionychia (soft-shelled and pig-nosed turtles)