Otischalkia is an
extinctgenus of
archosauromoph from late
Triassic (late
Carnian stage) deposits of
Howard County,
Texas, US It is known from the
holotype TMM 31025-263, left
humerus and from the referred specimens TMM 31025-262, TMM 31025-266, TMM 31025-264, TMM 31185-92 and TMM 31185-93. It was found in the Lower
Dockum Group near the abandoned settlement of Otis Chalk. It was first named by Adrian P. Hunt and Spencer G. Lucas in
1991 and the
type species is Otischalkia elderae.[1]
Originally described as a
rhynchosaur, several recent studies found O. elderae to represent a nomen dubium.[2][3][4]Nesbittet al. (2021) came to the conclusion that the holotype of Otischalkia actually belongs to an
azendohsaurid, specifically a malerisaurine.[5]
References
^Adrian P. Hunt; Spencer G. Lucas (1991). "A new Rhynchosaur from the Upper Triassic of West Texas, and the Biochronology of Late Triassic Rhyncosaurs". Palaeontology. 34 (4): 927–938.
^Cesar Leandro Schultz; Max Cardoso Langer; Felipe Chinaglia Montefeltro (2016). "A new rhynchosaur from south Brazil (Santa Maria Formation) and rhynchosaur diversity patterns across the Middle-Late Triassic boundary". Paläontologische Zeitschrift. 90 (3): 593–609.
Bibcode:
2016PalZ...90..593S.
doi:
10.1007/s12542-016-0307-7.
hdl:11449/161986.
S2CID130644209.