Aerotitan was a pterosaur which lived in South America during the late Cretaceous Period 70 million years ago.
The only fossil of this creature, consisting of just the front end of the upper jaw, was discovered in the early 2000s within Argentina’s Allen Formation, which dates to the late Cretaceous Period. It was officially named in 2012.
Aerotitan was a member of the pterosaur family Azhdarchidae, which includes creatures like Quetzalcoatlus and Hatzegopterus. Analysis of the fossils shows that Aerotitan was a very close relative of Mistralazhdarcho, whose fossils have been found in France within rocks dating to the Campanian/Maastrichtian boundary. Based upon the size of the specimen, and comparing it to other azhdarchid pterosaurs, Aerotitan had a wingspan of just 16 feet (5 meters). However, it is unknown if the individual was a juvenile or if it was fully-grown.
Below is a reconstruction of what Aerotitan might have looked like, based upon Quetzalcoatlus and Mistralazhdarcho.
Aerotitan sudamericanus. © Jason R. Abdale (April 22, 2026).
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