Fig. 305.—A. The skull of a late Triassic trionucleosaurus, B, inside of jaw of Spinosaurus, a symplectic, about 1.5 times natural size; C, inside of jaw of Amphiosaurus, a pantothere, about 2 times natural size. (A after Patterson, B and C after Simpson.)

ypm
No PU17217

Date

Name *Trioracodon ferax*

Horizon Late Jurassic

Locality England + N. Amer.

Collector

Description
Model of upper dent. + lower jaw X 4, composite reconstruction.
Purchase, AMNH, 1960
Yale, Princeton Department of Geology

SVP