In 2005 Dr. David Varricchio and a team of scientist unearthed a femur of a dromaeosaur, a tooth from a Tyrannosaurid, a tooth from a Sauropod and a tooth from an Igianodontid from an site in southern Nevada. They also found dinosaur eggshells in the area which is believed to have once been a flood plain where the creatures lived and died for many generations from 99 million to 112 million years ago. Earlier reports on dinosaur remains from the Newark Supergroup in Nevada were made in 1976 (Smith et al, 1976) and from an unnamed unit (Carpenter press. comm.) in Nevada fossil remains of a theropod, an ankylosaur a hadrosaurid are reported. The unnamed unit also revealed the remains of a neoceratopia ?Leptoceratops sp..

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