[D] Tanystropheus willistoni
Triassic Late Carnian
Saurischia Theropoda Tetanurae Coelurosauria Nomina Dubia
Chinle Formation, New Mexico, US
Coelophysis willistoni (Cope, 1887) > Tanystropheus willisstoni (Cope, 1887)
The type material consitsts of a small, imperfectly preserved ilium.
In addition Cope (1887) referred to this taxon several dorsal vertebrae and miscellaneous bone fragments. Cope (1889) synomyzed this species with Coelophysis willistoni.
In all probability this specimen is a juvenile of Coelophysis bauri, as has been proposed by Colbert (1964), but this cannot be proven.