Pterospondylus

Pterospondylus (meaning "winged vertebra") is a dubious genus of theropod dinosaur from the Late Triassic. It was a coelophysoid theropod which lived in what is now Germany (Trossingen Formation). The type species, "Pterospondylus trielbae", (derived from "Tri", in reference to the Triassic period, and "Elba", for the Elbe River area), was described by Jaekel in 1913-14 for a single back vertebra. Sometimes, it is aligned with "Procompsognathus", or even considered to be synonymous with it, despite being based on a vertebra that is twice the size of the corresponding bone in "Procompsognathus".