The Triassic turtle of Thailand - revision of 'Proganochelys' ruchae.

ABSTRACT: True turtles (Testudinata) appeared in the Norian (Late Triassic) and quickly attained a worldwide distribution and relatively high diversity. Their remains are currently known from that time from Asia, Europe, North America, and South America, and represent at least three separate clades. Whereas the generic and suprageneric attribution of comparatively well-preserved and studied European and South American taxa, such as Proganochelys quenstedtii, Proterochersis robusta and Proterochersis porebensis, Palaeochersis talampayensis, and Waluchelys cavitesta sparks no controversy, the more fragmentary and less common species have been variably considered representatives of separate genera or referred to already existing ones - most commonly, Proganochelys. This uncertainty is unfortunate, as i

SUBMITTER: Szczygielski T 

PROVIDER: S-EPMC12279380 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature