Ancient Marine Reptile: A Prehistoric Filter-Feeder

Fossils of Hupehsuchus nanchangensis, an extinct marine reptile closely related to ichthyosaurs, have been discovered in China, revealing that these creatures were filter feeders similar to modern baleen whales. Analysis of the skulls of two specimens showed structures that allowed them to scoop up water and sift out prey. The skull structure of Hupehsuchus suggests it independently evolved some form of baleen, with a long, flexible snout and grooves along the jaws. This discovery indicates that filter feeding evolved as early as 250 million years ago, during the Triassic Period. The rapid evolution of these marine reptiles had a significant impact on marine ecosystems during a time of turmoil.