Tropeognathus, meaning “keel jaw”, was a large pterosaur which lived in Brazil during the middle of the Cretaceous Period 112 million years ago. Tropeognathus was a member of a group of pterosaurs called the anhanguerids, named after the genus Anhanguera. The anhanguerids often had thin fin-like crests on the front of their jaws, and Tropeognathus had the largest and most dramatic of these. With a wingspan of 25 feet, it was one of the largest pterosaurs, with only the gigantic azhdarchid pterosaurs like Quetzalcoatlus and Hatzegopterus being bigger.
Tropeognathus mesembrinus. © Jason R. Abdale (January 7, 2026).
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Categories: Paleontology, Uncategorized
DINOSAURS AND BARBARIANS 
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