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Arrhinoceratops

Arrhinoceratops, meaning “no nose-horn face” is a genus of ceratopsian dinosaur from the Late Cretaceous Period, more specifically the Early Maastrichtian Stage. Its name is derived from the Greek words a: “no”, rhino: “nose”, cerat: “horn”, and ops: “face”. Arrhinoceratops was discovered in 1923 along the Red Deer River in Alberta, Canada by an expedition led by the University of Toronto. It was first described by W.A. Parks in 1925. Only one species is known/described (A. brachyops).

Arrhinoceratops is known only from its skull and little is known about its anatomy. However, scientists believe the animal was about 20 feet long when fully grown. From the skull, there is evidence of a broad neck frill with two oval shaped openings. The brow horns were moderately long. The short nose horn was shorter and blunter than most other ceratopsians. This was a herbivorous dinosaur with a parrot-like beak.

Because flowering plants were geographically limited through the landscape, the diet of the Arrhinoceratops consisted most likely of ferns, cycads and conifers. It used its sharp beak to bite leaves and needles of branches.

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Arrhinoceratops


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