Trionyx austerus Hay 1908 (softshell turtle)

Reptilia - Testudines - Trionychidae

Alternative combinations: Aspideretes austerus, Aspideretoides austerus

Synonyms: Aspideretes fontanus Hay 1908, Aspideretes vorax 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 Gilmore 1935, Hay 1908 and Sullivan et al. 2012

Sister taxa: Trionyx admirabilis, Trionyx aequa, Trionyx allani, Trionyx baynshirensis, Trionyx beecheri, Trionyx boulengeri, Trionyx capellinii, Trionyx dissolutus, Trionyx ellipticus, Trionyx eloisae, Trionyx foveatus, Trionyx gangeticus, Trionyx gilbentuensis, Trionyx gobiensis, Trionyx gregarius, Trionyx henrici, Trionyx ikoviensis, Trionyx impressus, Trionyx jixiensis, Trionyx johnsoni, Trionyx kansaiensis, Trionyx latus, Trionyx leucopotamicus, Trionyx linchuensis, Trionyx messelianus, Trionyx miensis, Trionyx minusculus, Trionyx miocaenus, Trionyx mira, Trionyx ninae, Trionyx onomatoplokos, Trionyx phayrei, Trionyx pliocenicus, Trionyx reesidei, Trionyx riabinini, Trionyx robustus, Trionyx shiluutulensis, Trionyx silvestris, Trionyx singularis, Trionyx triunguis, Trionyx uintaensis, Trionyx vegetus, Trionyx vindobonensis

Type specimens:

  • Trionyx austerus: AMNH 6068, a partial shell (the nuchal except the central portion, part of both first costals, the greater part of a right posterior costal, probably the sixth, various fragments of costal). Its type locality is west of Chaco Canyon, Ojo Alamo (AMNH), which is in a Campanian terrestrial shale/sandstone in the Kirtland Formation of New Mexico.
  • Aspideretes fontanus: AMNH 6070, a partial shell (nearly the whole of the right half of the nuchal and a considerable part of the right first costal). Its type locality is west of Chaco Canyon, Ojo Alamo (AMNH), which is in a Campanian terrestrial shale/sandstone in the Kirtland Formation of New Mexico.
  • Aspideretes vorax: AMNH 6140, an osteoderm (nuchal bone). Its type locality is west of Chaco Canyon, Ojo Alamo (AMNH), which is in a Campanian terrestrial shale/sandstone in the Kirtland Formation of New Mexico.

Ecology: aquatic piscivore-carnivore

Distribution:

• Cretaceous of United States (9: New Mexico collections)

Total: 9 collections each including a single occurrence

Show more details


Specimen images are retrieved through the ePANDDA API.


Click image to enlarge. Click to access iDigBio record.