Carnotaurus 1/4 Scale Skull, model Stegosaurus 4---pliosaur tooth---jurassic

4---pliosaur tooth---jurassic

three clawed fingers on each forearm and

This extreme variation has prompted some paleontologists to consider Dickinsonia a fungus or protist rather than an animal

Both the creature's jaws were elongated and sported forward-facing tusks

triangular spikes may have protruded laterally along each side of the tail

Carnotaurus 1/4 Scale Skull, model Stegosaurus 4---pliosaur tooth---jurassicIn Cretaceous Argentina, Carnotaurus fiercely guarded his place at the top of the food chain. The species displayed several bizarre features, most prominent of which was a pair of bull like horns above the creature's eyes. Carnotaurs were related to a primitive group of theropods called Abelisaurids. This relationship probably puts Carnotaurus closer to Allosaurus than to Tyrannosaurus rex, though it doesn't appear that any of these three lived at the