Iguanodon Thumb Spike Pteranodon Until finds of other early

Until finds of other early stegocephalians and closely related fishes in the late 20th century

65 million years

The Odonata are known to be ancient insects

This is a brain endocast of a bobcat

Iguanodon Thumb Spike Pteranodon Until finds of other earlyThumbs 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