Category
page 1Prehistoric synapsids of Europe

Cryptovenator
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Suminia
Suminia is an extinct genus of basal anomodont that lived during the Tatarian age of the late Permian, spanning approximately from 268–252 Ma. Suminia is recognized as the youngest non-dicynodont anomodont and was named in honor of Russian paleontologist D. L. Sumin. Its fossil localities are primarily derived from the Kotel’nich locality of the Kirov Oblast in Russia. However, there have been some isolated specimens found in a few different localities, all from eastern European regions of Russia.
Archaeosyodon
Archaeosyodon is an extinct genus of dinocephalian therapsids. It was medium-sized, reaching about 1.5–2 m (4–5 ft) in length.
Scylacosuchus
Scylacosuchus is an extinct genus of therocephalian therapsids. It was a predatory eutherocephalian that lived in Lopingian epoch. Its fossils were found in Orenburg Oblast of Russia. The type species is Scylacosuchus orenburgensis.
Annatherapsidus
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Annatherapsidus is an extinct genus of therocephalians from the Upper Permian of Russia. It was a fairly small animal with a length of 91 cm and a 22 cm skull. It was originally named Anna petri, but the genus name was already taken, so it was renamed to Annatherapsidus.
Otsheria
Otsheria is an extinct genus of anomodont, in the infraorder Venyukovioidea. It lived in modern-day Russia during the Permian.
Megawhaitsia
Megawhaitsia is an extinct genus of large therocephalian therapsids who lived during the Late Permian (Wuchiapingian) in what is now Eastern Europe. The only known species is M. patrichae, described in 2008 from several fossils discovered in various oblasts of European Russia. The fossils are representative of a large animal whose skull size is estimated to be long.
Moschowhaitsia
Moschowhaitsia is an extinct genus of therocephalian therapsids from the Late Permian (Guadalupian) of Russia and China. The type species, Moschowhaitsia vjuschkovi, was discovered in the Changxingian-aged Archosaurus Assemblage Zone of Russia and named in 1963 by Russian palaeontologist Leonid Petrovich Tatarinov. A second species was discovered in Jingtai County of Gansu, China in 2020 and named as M. lidaqingi in 2023 by Jun Liu and Fernando Abdala, the first whaitsiid therocephalian to be discovered in China. It was among the larger carnivores in the faunal assemblages it occurred in, with
Parabradysaurus
Parabradysaurus is an extinct genus of rhopalodontid dinocephalians. It is known from a few serrated teeth that indicate this animal was like herbivorous.
Macromerion
Macromerion (Macro- is Greek/Latin for "large") is an extinct genus of non-mammalian synapsids, specifically Pelycosaurs, in the family Sphenacodontidae from Late Carboniferous deposits in the Czech Republic. It was named as a species of Labyrinthodon in 1875 and as its own genus in 1879.