Spinosaurus Hand Claw 2d45cdc1bc7f9653e2d740b6c147a1fb and cuttlefish) than they were

and cuttlefish) than they were to the chambered nautilus

about 150 million to 180 million years ago

Its chemical composition is aluminum oxide

This comes from the oxidized iron introduced to them during their formation

Spinosaurus Hand Claw 2d45cdc1bc7f9653e2d740b6c147a1fb and cuttlefish) than they wereSpinosaurus is a genus of theropod that roamed northern Africa during the cretaceous period. It is known for being the largest carnivorous dinosaur in the fossil record. This monstrous beast not only walked the lands but also was adept at swimming in the seas. Their remains are found in what is now the Sahara Desert. During the Cretaceous time period this area would have been a massive floodplain and mangrove forest. Spinosaurus had a distinct sail on