(pronounced SPINE-oh- SAWR-us) Spinosaurus was a large, sail-backed, spinosaur, a theropod from the late Cretaceous period, 97.5 million-95 million years ago. This meat-eating, bipedal dinosaur was named by Stromer in 1915. The type species is S. aegypticus. Sk-Sq

Spinosaurus (meaning 'spine lizard') was a theropod dinosaur genus that lived in what is now Egypt, from the Albian to early Cenomanian stages of the Cretaceous Period, about 95 to 93 million years ago. According to a study by dal Sasso et al. (2006), it was the largest of all carnivorous dinosaurs by a significant margin, even larger than Tyrannosaurus rex and Giganotosaurus. Spinosaurus was the longest theropod, measuring 15 to 17.4 metres (49.2 to 57.1 feet) long and reached weights up to 9 tons. dal Sasso, C., S.