Dinofact #101
Sinosaurus is the only "dilophosaurid" known from a complete braincase. Fellow "dilophosaurids" Cryolophosaurus, Dilophosaurus, Zupaysaurus and Coelophysis kayentakatae are all known only from partial braincases. Two partial, mostly comlete, braincases have been assigned to Sinosaurus, and in 2011 an exceptionally well-preserved braincase was found, which was missing only the frontal bones and orbitosphenoid.
Source: Wikipedia












