Spinosaurus Sail roughrubypendant The Ammonite pendant necklace features

The Ammonite pendant necklace features one-half of a polished

Some segments have significant crampon marks along the edges

Long before Tyrannosaurus rex

measuring perhaps 12m (40ft) in length in adulthood

He was also responsible for making most of the commemorative displays for astronauts

Spinosaurus Sail roughrubypendant The Ammonite pendant necklace featuresTopping out at just over 18m long (59ft), Spinosaurus is one of the largest carnivorous dinosaurs ever discovered. This family of giant theropods also happens to be among the most surprising creatures in the fossil record. This specimen is a piece of a fossil Spinosaurus neural spine from the Kem Kem fossil beds of Morocco. It comes complete with an informational card that serves as statement of authenticity.