Tyrannosaurus rex (Hank) rib Alamosaurus " Exposure to the air

" Exposure to the air was enough to kill them

and the Green River formation that covers some 25

Colorado and Oklahoma

It has also been suggested that the forelimbs were used to assist the animal in rising from a prone position

For a full description of this species: see the AMNH Scientific Publication 2246/2803 which can be found by doing a web search for Manchurochelys liaoxiensis

Tyrannosaurus rex (Hank) rib Alamosaurus " Exposure to the airThis Tyrannosaurus rex rib is cast from a newly discovered and undescribed specimen located in the upper Cretaceous rocks of northern Montana's Hell Creek Formation. This new Trex is dubbed Hank after the discoverer. There are only about 30 named specimens of Trex in the world and while their bones are indeed rare casts, of original bones of Trex made available to the public are even more rare. Shipping Included