Reptilia - Testudines - Trionychidae
Alternative combinations: Aspideretes ellipticus, Hummelichelys ellipticus
Synonyms: Aspideretes annae Zangerl 1944, Aspideretes grangeri Hay 1908, Hummelichelys annae Zangerl 1944, Hummelichelys grangeri Hay 1908
Full reference: O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568
Belongs to Trionyx according to N. S. Vitek and W. G. Joyce 2015
See also Chkhikvadze 2000, Hay 1908, Hay 1930 and Zangerl 1944
Sister taxa: Trionyx admirabilis, Trionyx aequa, Trionyx allani, Trionyx austerus, Trionyx baynshirensis, Trionyx beecheri, Trionyx boulengeri, Trionyx capellinii, Trionyx dissolutus, Trionyx eloisae, Trionyx foveatus, Trionyx gangeticus, Trionyx gilbentuensis, Trionyx gobiensis, Trionyx gregarius, Trionyx henrici, Trionyx ikoviensis, Trionyx jixiensis, Trionyx johnsoni, Trionyx kansaiensis, Trionyx latus, Trionyx leucopotamicus, Trionyx linchuensis, Trionyx miensis, Trionyx minusculus, Trionyx miocaenus, Trionyx mira, Trionyx ninae, Trionyx nopcsai, Trionyx onomatoplokos, Trionyx phayrei, Trionyx pliocenicus, Trionyx reesidei, Trionyx riabinini, Trionyx robustus, Trionyx shiluutulensis, Trionyx silvestris, Trionyx singularis, Trionyx triunguis, Trionyx uintaensis, Trionyx vindobonensis
Type specimens:
- Trionyx ellipticus: AMNH 1117, a carapace
- Aspideretes annae: FMNH P 27241 (formerly UND 663), a partial skeleton (nearly complete carapace and plastron, isolated extremity bones). Its type locality is East of Little America, which is in a Bridgerian mire/swamp claystone in the Bridger Formation of Wyoming.
- Aspideretes grangeri: AMNH 3942, a partial shell (carapace). Its type locality is Cottonwood Creek, about half a mile below the Henry's Fork stage road (B3), which is in a Bridgerian terrestrial horizon in Wyoming.
Ecology: aquatic piscivore-carnivore
Distribution:
• Eocene of United States (3: Wyoming collections)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.