Mosasaur Jaw Quetzalcoatlus It had long been thought

It had long been thought that Stegoceras' (and other pachycephalosaurs') thick dome may have been used for ramming rivals during mating and dominance combat

light weight

Some dismissed the fossils as apes and others as modern humans

Campylognathoides was a flying reptile from the world-renown late Jurassic

perfectly preserved 6 foot long ichthyodectid Gillicus arcuatus

Mosasaur Jaw Quetzalcoatlus It had long been thoughtMosasaurs were a group of predatory marine reptiles that were very successful during the Late Cretaceous Period. The first mosasaur fossils were found in the 1770's in a mine in the Netherlands, more than 50 years before the first dinosaur bones were found. Mosasaurs were among the first fossils recognized and scientifically described. "Mosasaur" means "reptile of the Meuse," a river near the quarry where mosasaurs were first found. Mosasaurs were