Herrerasaurus ischigualastensis, skull Deinonychus The Messel Pit was closed

The Messel Pit was closed to collecting in 1974

v Meyer in 1861 and the specimen was subsequently bought by the British Museum of Natural History in London (under the instruction of Richard Owen)

Most of the study on these fossils was done by Davidson Black until his death in 1934

This 2 plus inch long fossil shark tooth comes from the extinct fossil shark Otodus obliquus

Herrerasaurus ischigualastensis, skull Deinonychus The Messel Pit was closedHerrerasaurus (huh RARE ah SAWR us) (meaning "Herrera's lizard;" Victorino Herrera was a rancher who discovered the fossil) was a late Triassic archosaur (a reptile that was almost a dinosaur) from about 230 million years ago. It used to be thought to be a very early dinosaur and a primitive prosauropod. It was a speedy bipedal carnivore about 17 feet long, weighing roughly 440 780 pounds. It had a short neck and a large head. Three partial skeletons