Genus: Palaeotrionyx KUSNESTEZOV & CKHIKUADZE, 1987
Etymology: Latin, paleo, "ancient" + Trinoyx.
Species: riabinini KUSNESTEZOV & CKHIKUADZE, 1987
Etymology:
= Trionyx riabinini KUSNESTEZOV & CKHIKUADZE, 1987
= ?Axestemys riabinini KORDIKOVA, 1991
= Axestemys (Axestemys)
riabinini KORDIKOV, 1994
= Khunnuchelys riabinini CHIKHIKVADZE, 2000
= Eurycephalochelys riabinini CHKHIKVADZE, 2007
Holotype: IZK R- 3920
Locality: Shakh-Shakh, Kazakhstan.
Horizon: Bostobe Formation.
Biostratigraphy:
Age: Santonian-Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material: Fragment of shell.
Referred material:
No. 3815:
No. 3927:
No. 3963:
No. 3971:
No 3921:
Fragment of shell.