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meaning: "Keel jaw"
Named By: Peter Wellnhofer in 1987
Time Period: Aptian-Albian, 112 Ma
Location: Brazil - Santana Formation
Size: Largest known individual based upon specimen MN 6594-1 is estimated to have had a wingspan 8.2 meters across
Diet: Piscivore
Fossil(s): Remains of at least three individuals, together revealing the skull and parts of the post cranial skeleton
Classification: | Chordata | Reptilia | Pterosauria | Ornithocheiridae |
Also known as: | Coloborhynchus mesembrinus | Criorhynchus mesembrinus | Ornithocheirus mesembrinus |

Tropeognathus is a genus of large pterosaurs from the late Cretaceous Period 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.

Read more about Tropeognathus at Wikipedia
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