Torosaurus
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| phylum | Chordata | Torosaurus lived during the late Maastrichtian stage of the Cretaceous period. The frilled skull reached 2.6 metres (8.5 ft) in length. From head to tail, Torosaurus is thought to have measured about 9 m (30 ft) long and weighed 4 to 6 tonnes (4.4 to 6.6 tons). Torosaurus is distinguished from the contemporary Triceratops by an elongate frill with large openings (fenestrae), long squamosal bones of the frill with a trough on their upper surface, and the presence of five or more pairs of hornlets (epoccipitals) on the back of the frill. Torosaurus also lacked the long nose horn seen in Triceratops prorsus, and instead resembled the earlier and more primitive Triceratops horridus in having a short nose horn.
For more information, visit the Wikipedia entry. Get back to Ceratopsia |
| clade | Sauropsida | |
| clade | Diapsida | |
| order | Ornithischia | |
| family | Ceratopsidae | |
| genus | Torosaurus | |
| species | T. latus | |
| Period | Late Cretaceous |
