Describer

Ostrom, 1969

Time

Cretaceous Late Aptian Albian

Classification

Saurischia Theropoda Tetanurae Coelurosauria Dromaeosauridae

Diet

Carnivore

Fossilsite

Cloverly Formation, Montana, Wyoming, Antlers Formation, Oklahoma, US

Length

3 meter

Info

Genus - Typespecies - Skull

Holotype: YPM 5205 pes. Paratypes YPM 5201, 5202 en 5203 caudals; YPM 5204 cervical vertebra, YPM 5206, left and right handbones; YPM 5210, skull ans partial skeleton;YPM 5232 right part of skull and YPM 5207-5209, 5211-5231 en 5233-5265 teeth and other skeletall material

More than 8 articulated and disarticulated skeletons and skulls.

The first dromaeosaurid remains to be described were those of Dromaeosaurus albertensis (\\\\\\\"running reptile\\\\\\\") which were discovered near the Red Deer River by Barnum Brown in 1914. Unfurtunately as in often the case with many fossil species, the specimen that Brown collected was far from complete; it consisted of the partial head, lower jaws and an assortment of foot bones of a small carnivorous dinosaur.

During the next fifty years nothing more was discovered of this dinosaur. But in 1964, Grant Meyer and Professor John Ostrom of Yale University, found a new fossil locality in southern Montana. During the next two years excavations at this site unearthed several hundred bones of an entirely new carnivorous dinosaur: Deinonychus (\\\\\\\"terrible claw\\\\\\\" ) antirrhopus.