|1st Species||Aegirosaurus leptospondylus|
|Time Range||150.8-136.4 mya|
|Name Meaning||Aegir reptile|
|Physical Dimensions||1.8 meters long|
Aegirosaurus is an ophthalmosaurid ichthyosaurian reptile from the Late Jurassic-Early Cretaceous of Germany and France. It was officially named in 2000 by Nathalie Bardet and Marta S. Fernandez. It was one of the more successful ichthyosaurs (surviving the Jurassic extinction event and persisting into the Cretaceous), and was thought to be a species of Ichthyosaurus before finally being described as its own genus.
Aegirosaurus was an ichthyosaur with a sleek, streamlined body, 4 flippers, a long tail with a shark-like fin on its end, a large fin on its back, a conical head with large jaws, and small eyes on the sides of its head. Its body would have been covered in scaly skin.
Aegirosaurus was a predator, preying on fish and cephalopods. Its teeth were small yet sharp, and were used to get a hold of slippery prey.
So far, all we know about Aegirosaurus is that it was a generalist predator of aquatic prey, similar to many plesiosaurs.