Spinosaurus Tooth - 2.824" Natural Wear Fossil plesiosaurteeth the Space Shuttle Challenger was

the Space Shuttle Challenger was the second of the space shuttles in the program to enter orbit

Estimated to have a pre atmospheric mass of 220

427" fossilized Mosasaur tooth

predatory fish which sported massive fangs

Spinosaurus Tooth - 2.824" Natural Wear Fossil plesiosaurteeth the Space Shuttle Challenger wasTopping 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 naturally worn, fossilized crown and partial root of a real Spinosaurus tooth from the Kem Kem fossil beds of Morocco. It measures 2. 824" in length.