Dinosaur Figurine Carved Orthoceras AnimalCarved Stone Dinosaur Figurine This figurine is made out of polished rock containing million year old Orthoceras fossils. Orthoceras fossils are the remains of an invertebrate, an animal without a backbone, that belongs to the Phylum Mollusca family. This is a broad grouping that includes snails, slugs, oysters, clams, octopuses, and squid. An Orthoceras is a Nautiloid from the Devonian period of the Paleozoic era, millions of years ago. Orthoceras