J118 - Top Rare Ornithocheirid Pterosaur Claw - Lower Cretaceous Elrhaz Fm centrosaurus Still nowadays the Dromaeosauridae family

Still nowadays the Dromaeosauridae family has not been officially described in the dinosaur assemblage of the Upper Cretaceous of this sector

Lieberman 1993

Unguliproetus

Size: 2cm = 0

Its preservation state is exceptional

J118 - Top Rare Ornithocheirid Pterosaur Claw - Lower Cretaceous Elrhaz Fm centrosaurus Still nowadays the Dromaeosauridae familyOrnithocheirus simus, is only known from fragmentary jaw tips. It bore a distinctive convex "keeled" crest on its snout similar to its relatives. Ornithocheirus had relatively narrow jaw tips compared to the related Coloborhynchus and Tropeognathus, which had prominently expanded rosettes of teeth, as well as a more developed "keeled" crest compared to Ornithocheirus. Another feature that made Ornithocheirus unique and unlike its relatives, was that