Iguanodon Thumb Spike Deinonychus while much of the original

while much of the original structure such as tree rings in retained

or soft-bodied relatives of the arthropods

Montana and the Dakotas

Lawson (who was then a geology graduate student at the University of Texas

It was found in the Lance Formation of Wyoming

Iguanodon Thumb Spike Deinonychus while much of the originalThumbs up! This unique thumb spike belongs to Iguanodon, a plant eating dinosaur. Iguanodon's hand worked backwards: the thumb couldn't move (but worked well as a weapon) and the "pinky" finger wrapped around to grasp. Cast from a scientifically accurate model in fine museum quality resin. Specs: Iguanodon. Early to Middle Cretaceous (140 110 m. y. a.). Shipping Included