Dinosaurs, Fossils, Evolution, Paleontology.
Spinosaurus Was An Aquatic, Tail-Propelled Theropod Dinosaur — Or Was It? Life restoration of Spinosaurus aegyptiacus by Mario Lanzas — Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=89602855 Anatomy, biomechanics, and ichnology tell us that dinosaurs were terrestrial