04101 - Great Partial 0.43’’ Nanotyrannus lancensis Dinosaur Tooth Hell Creek Fm KemKem_Crocodile_Species other types of reptiles and

other types of reptiles and even marine birds

The exact taxonomic classification is complex given that there are very few published studies that refer to the rests of the Pterosaurs in the North African Upper Cretaceous

Bulletin of the American Museum of Natural History 300:1-318

- Hamadachelys escuilliei Tong and Buffetaut 1996

where two species without a direct phylogenetic relationship end up having the same shape or structure

04101 - Great Partial 0.43’’ Nanotyrannus lancensis Dinosaur Tooth Hell Creek Fm KemKem_Crocodile_Species other types of reptiles andNice specimen of this close relative of Tyrannosaurus rex. It does not have any type of restoration or repair.