Reptilia - Testudines - Trionychidae
Parent taxon: Trionychinae according to I. G. Danilov et al. 2014
See also Danilov and Vitek 2013, Hutchison 1996, Karl 2007, Karl 2018, Karl and Lindow 2012, Karl and Tichy 2019, Meylan 1987 and Weisrock and Janzen 2000
Sister taxa: Aulacochelys, Axestemys, Chitrini, Dogania, Nilssonia, Palea, Pelodiscus, Rafetus, Trionyx, Trionyx (Amyda) subangularis, Trionyx bambolii, Trionyx blayaci, Trionyx desmostyli, Trionyx dieupentalensis, Trionyx harmati, Trionyx irregularis, Trionyx pliopedemontana, Trionyx stadleri, Trionyx stiriacus
Subtaxa: Apalonina Gobiapalone Oliveremys Rafetoides Rafetoidina Trionychina
Ecology: aquatic piscivore-carnivore
Distribution:
• Miocene of United States (1: Texas collection)
• Oligocene of Germany (1), Kazakhstan (1)
• Eocene of Austria (1), Germany (5), United States (5: Utah, Wyoming)
• Paleocene of Denmark (4)
• Cretaceous of Mongolia (1), Uzbekistan (1)
Total: 20 collections each including a single occurrence