Proterochersis is an extinct genus of turtle from the Late Triassic period (Norian stage) of Europe.

[2] Since then, Szczygielski and Sulej have found that the differences described by Fraas could be the result of intraspecific variation, meaning that P. intermedia are synonymous with P. robusta.

[3] A study from 2021 concluded that fossil turtle remains described in 1865 as Chelytherium obscurum[1] are probably synonymous with Proterochersis.

[6] Fossils show that Proterochersis was a turtle of moderate size, with a domed shell similar to modern tortoises.

If Proterochersis were indeed a pleurodiran, this would mean that the crown-group of turtles originated in the Late Triassic period.