Helicoprion, whorl-tooth shark Dimorphodon (Batteries Included) Aluminum body with

(Batteries Included) Aluminum body with plastic lens housing and a plastic carrying case

Cleveland-Lloyd Quarry

Around 90 percent of the specimen’s bones were recovered

plus first

Horse fossils of this quality from the Badlands are simply not prevalent

Helicoprion, whorl-tooth shark Dimorphodon (Batteries Included) Aluminum body withHelicoprion ("Spiral Saw") was a long lived genus of shark like cartilaginous fish that first arose in the oceans of the late Carboniferous 280 million years ago, survived the Permian Triassic Extinction Event, and eventually went extinct during the early Triassic some 225 million years ago. The only fossils known are the teeth, which were arranged in a fantastic "tooth whorl" strongly reminiscent of a circular saw. It was not until the discovery of