Prenocephale
was a herbivorous (plant-eating) dinosaur that
lived during the late Cretaceous period,
about 83 to 65 million years ago,
in Mongolia, as well as, possibly, North America.
It was one of the dinosaurs that died out in the Cretaceous-Tertiary
extinction,
65 million years ago.
Prenocephale was generally similar in form to one of its close relative,
Pachycephalosaurus,
but was considerably smaller in size. Like
Pachycephalosaurus,
it had a thick bony dome on its head with bony knobs and spikes. However, as compared
to a number of other animals in this group,
Prenocephale's dome was sloping, hence its
name which means "sloped head".
Although some scientists have argued that perhaps Prenocephale was
an omnivore, it is generally believed to have been
a herbivore (plant-eater).
Prenocephale probably ate leaves and fruit, and may have
been quite selective in its foraging.
Only a limited number of fossils
of Prenocephale have so far been found, most of which are skulls, although a few other bones
have been found. Based on these, and comparison of its anatomy to its relatives,
scientists believe that Prenocephale was about 8 feet (2.4 meters) long, and weighed something in
the region of 290 pounds (130 kilograms).
Prenocephale was a member of the Ornithischia ("bird-hipped") order of dinosaurs. What this means, is that although Prenocephale was not closely related to birds, it did have similarly shaped pelvic bones.
Prenocephale was a Pachycephalosaur - a member of a group of related herbivorous (plant-eating) dinosaurs with bony domes on their heads.
Prenocephale lived between about 83 million years ago and 65 million years ago, during the late Cretaceous period.
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