Upper Jurassic Period
Fragmentary crushed remains of a large pterosaur from the Kimmeridgian/Tithonian
boundary in Colorado, USA. The left humerus and some wing bone fragments
and a cervical vertebra were found in association.
Harris J. D. and Carpenter K., 1996, A large pterodactyloid from the
Morrison Formation (Late Jurassic) of Garden Park, Colorado. N. Jb. Geol.
Palaont. Mh. H.8, 473-484.