Saurolophus angustirostris, hadrosaur skull Kentrosaurus which lined its elongated and

which lined its elongated and narrow snout

Didymoceras is an extinct genus of ammonite cephalopod

In 2006 a new species of Pachycephalosaur was named

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The seven species of trilobites represented by this replica are approximately 370 million years old and are from the Middle Devonian Period

Saurolophus angustirostris, hadrosaur skull Kentrosaurus which lined its elongated andHadrosaur Dinosaur Skull, 29 inches long. Scientific Name: Saurolophus angustirostris Location: Mongolia Formation: Nemegt Age: Late Cretaceous, 71 Million Years Ago. Saurolophus, meaning ("lizard crest") is a genus of large saurolophine hadrosaurid dinosaur that lived about 7068. 5 million years ago, in the Late Cretaceous of North America and Asia; it is one of the few genera of dinosaurs known from multiple continents. It is distinguished by a