New paper suggests Spinosaurus may have been aquatic

Sunday, May 3, 2020 - 05:34 in Paleontology & Archaeology

Back in the Cretaceous period, 145 to 66 million years ago, dinosaurs dominated the land and sky. They also, a new paper argues, terrorized the aquatic realm. Recent fossil evidence has revealed that Spinosaurus aegyptiacus, among the largest of all known carnivorous dinosaurs, was a creature of the water, with a center of gravity and a giant tail fin perfect for swimming. The same paper shares robotic modeling by two Harvard scientists that shows how that large, flexible tail fin — unique among dinosaurs — would have given the giant predator a deadly propulsive thrust in the water, similar to a salamander or crocodile tail. The paper, “Tail-Propelled Aquatic Propulsion in a Theropod Dinosaur,” in the April 29 issue of Nature, uses new fossil evidence and robotically controlled models created by Harvard co-authors Stephanie E. Pierce and George V. Lauder, professors of organismic and evolutionary biology, to show its power. Pierce said...

Read the whole article on Harvard Science

More from Harvard Science

Latest Science Newsletter

Get the latest and most popular science news articles of the week in your Inbox! It's free!

Check out our next project, Biology.Net