Hadrosaur 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 70–68.5 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 spike-like crest which projects up and back from the skull. Saurolophus was an herbivorous dinosaur which could move about either bipedally or quadrupedally.
Saurolophus is known from material including nearly complete skeletons, giving researchers a clear picture of its bony anatomy. S. angustirostris, the Mongolian species, was roughly 12 meters long (39.4 feet), and larger remains are reported.
The most distinctive feature of Saurolophus is its cranial crest, which is present in young individuals but is smaller. It is long and spike-like and projects upward and backward at about a 45 degree angle, starting from over the eyes. This crest is often described as solid, but appears to be solid only at the point, with internal chambers that may have had a respiratory and/or heat-regulation function.
Saurolophus resembled Parasaurolophus which has a larger crest but is a distinct separate genus and species.
29 inches long
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