Secodontosaurus willistoni Archelon Therizinosaurus era un animal muy

Therizinosaurus era un animal muy grande

The Dilophosaurus was a medium-sized bipedal predator

Pteranodon fossils show that it had a wingspan of up to 7 meters

incluyendo Montana

making them one of the largest known pterosaurs

Secodontosaurus willistoni Archelon Therizinosaurus era un animal muySecodontosaurus willistoni, an extinct genus of synapsid, a group of mammal related animals that lived during the Permian period, approximately 275 million years ago. It was a member of a group known as therapsids, which were the predecessors of modern mammals. Secodontosaurus willistoni was a medium sized animal, with an estimated length of around 2. 7 meters. It had a large, elongated skull, with sharp, conical teeth that suggest it fed on small