Rhamphorhynchus, pterosaur skull & wing #5 Deinonychus All of the organic matter

All of the organic matter becomes replaced by minerals

The large size and spiny nature of this trilobite make it one of the more spectacular ones

110-90 million years ago

Cretaceous Dig Panel

Hold this tooth in your hand and know the terror its prey must have felt some 5 million years ago

Rhamphorhynchus, pterosaur skull & wing #5 Deinonychus All of the organic matterRhamphorhynchus, meaning "beak snout", is a genus of long tailed pterosaurs from the Jurassic period. Less specialized than contemporary, short tailed pterodactyloid pterosaurs such as Pterodactylus, it had a long tail, stiffened with ligaments, which ended in a characteristic diamond shaped vane. The jaws of Rhamphorhynchus housed needle like teeth, which were angled forward, with a curved, sharp, beak like tip lacking teeth, indicating a diet mainly