👉 The term "Struthiolaridae" refers to a group of extinct marine reptiles that lived during the Cretaceous period, approximately 68 million years ago. These animals were characterized by their large size and unique features, including a flattened body shape and a single spine that was used for walking on land. The Struthiolaridae were primarily aquatic animals found in shallow waters, with some species known to have been found on the continental shelf of North America. They are