Tropeognathus (SciiFii)

Tropeognathus is a genus of large pterosaurs from the late Early Cretaceous of South America. It was a member of the Ornithocheiridae (alternately Anhangueridae), a group of pterosaurs known for their keel-tipped snouts, and was closely related to species of the genus Anhanguera. The type and only species is Tropeognathus mesembrinus; a second species, Tropeognathus robustus, is now considered to belong to Anhanguera. Fossils of Tropeognathus have been recovered from the fossiliferous Romualdo Formation of the Araripe Basin in northeastern Brazil.