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Ceratosaurus
Ceratosaurus nasicornis01

Kingdom:

Animalia

Phylum:

Chordata

Class:

Reptilia

Superorder:

Dinosauria

Order:

Saurischia

Suborder:

Theropoda

Infraorder:

†Ceratosauria

Family:

†Ceratosauridea

Genus:

†Ceratosaurus

Species:

†C. nasicornis (type)

†C. ingens

†C. dentisuluctus

†C. magnicornis

Ceratosaurus was a genus of theropod dinosaur from the Kimmeridge Stage (late Jurassic), existing from 156-144 million years ago in the United States. It is distinguished by a prominent horn situated above the nostrils.

DescriptionEdit

SizeEdit

Ceratosaurus was a medium sized theropod, about 4.5-6 meters (15-20 feet) long and weighed 0.5-1 ton. Its body was supported by pillar-like hind limbs, and its forelimbs were robust and strong. Ceratosaurus likely used these forlimbsfor capturing prey. Its head, although large, was not particularly strong.

Nasal HornEdit

The most distinct feature of Ceratosaurus is its horn. Originally, this horn was believed to have been used as a weapon for goring prey to death. However, it was likely to fragile, so itv was suggested it was used for rutting between two males. Today, it is believed to have served only as a display. If this is true, Ceratosaurus may have had a bright colored horn.

PaleoecologyEdit

The fossils of Ceratosaurus have been found alongside larger dinosaurs such as Diplodocus, Apatosaurus, Stegosaurus, Allosaurus and Torvosaurus . Since both Allosaurus and Torvosaurus were larger predators from the same enviroment, Ceratosaurus likely tackled smaller pray such as ornithopods. Ceratosaurus may well have been a opportunistic hunter, hunting and scavenging any kill it could find. Fossils of Ceratosaurus are far less abundant than fossils of Allosaurus, suggesting they were solitary hunters.



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