Mammoth Tooth, Mammuthus primigenius, Pleistocene Spinosaurus The multituberculates had a cranial

The multituberculates had a cranial and dental anatomy superficially similar to rodents such as mice and rats

Wellnhofer in 1974

Over 200 specimens

roughly 280 million years ago

All the chambers are connected by a tube called a siphuncle which allowed the ammonite to rise or lower itself in the water

Mammoth Tooth, Mammuthus primigenius, Pleistocene Spinosaurus The multituberculates had a cranialProbably the most unique aspect of the Woolly Mammoth is not its large size, shaggy coat, or giant tusks, but its teeth. The Mammoth only had a single tooth in each jaw "four total" with six sets of replacements over its lifetime. If and when the last set wore out, the animal starved to death. Species: Mammuthus primigenius Tooth is 8 inches across the surface and 3. 5 inches wide with an 8 inch long root. Shipping Included