Trionyx reesidei Gilmore 1919

Reptilia - Testudines - Trionychidae

Alternative combinations: Aspideretes reesidei, Hummelichelys reesidei

Synonyms: Aspideretes quadratus Gilmore 1919, Hummelichelys quadratus Gilmore 1919

Full reference: C. W. Gilmore. 1919. Reptilian faunas of the Torrejon, Puerco, and underlying Upper Cretaceous formations of San Juan County, New Mexico. United States Geological Survey Professional Paper 119:1-68

Belongs to Trionyx according to N. S. Vitek and W. G. Joyce 2015

See also Chkhikvadze 2000 and Gilmore 1919

Sister taxa: Trionyx admirabilis, Trionyx aequa, Trionyx allani, Trionyx austerus, 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 riabinini, Trionyx robustus, Trionyx shiluutulensis, Trionyx silvestris, Trionyx singularis, Trionyx triunguis, Trionyx uintaensis, Trionyx vegetus, Trionyx vindobonensis

Type specimens:

  • Trionyx reesidei: USNM 8537, a carapace. Its type locality is San Juan Basin (non-specific), which is in a Puercan terrestrial horizon in the Nacimiento Formation of New Mexico.
  • Aspideretes quadratus: USNM 8545, a carapace.

Distribution: found only at San Juan Basin (non-specific)

Show more details


Specimen images are retrieved through the ePANDDA API.


Click image to enlarge. Click to access iDigBio record.