Monoclonius was a herbivore (plant-eater) that lived in North America
during the late Cretaceous period,
about 76 to 73 million years ago.
Monoclonius was about 16½ feet (5 meters) long, and probably weighed about 2 tons.
Monoclonius was named by Edward Drinker Cope in 1876,
soon after the first
fossil
specimen
(a near complete skeleton including skull material and the pbase of
the nasal horn, with only the feet missing)
had been founded in
Montana.
Its name means "single stem" and refers to its teeth, which have
a single root.
Although most scientists believe that Monoclonius became extinct many
millions of years ago, some cryptozoologists (people who search for
rumored or mythical animals whose existence is uncertain) have suggested
that an animal claimed to be known to Pygmy tribes in Central Africa,
known as "Emela-ntouka", might just be a surviving
Monoclonius, or perhaps another
Ceratopsian dinosaur such as
Centrosaurus.
So far however, there is no definitive proof of the existence of
Emela-ntouka.
For more information see
Living Dinosaurs?
"Monoclonius" means "single stem" (referring to its teeth which have a single root). This name was chosen by Edward D. Cope in 1876.
Monoclonius was a member of the Ornithischia ("bird-hipped") order of dinosaurs. What this means, is that although Monoclonius was not closely related to birds, it did have similarly shaped pelvic bones.
Monoclonius was a Ceratopsian - a member of a group of related herbivorous (plant-eating) dinosaurs with beaks, many of which had neck frills and horns as well.
Monoclonius lived between about 76 million years ago and 73 million years ago, during the late Cretaceous period.
Monoclonius lived in North America.
Monoclonius was a herbivore (plant-eater).
Monoclonius was about 16½ feet (5 meters) long.
Monoclonius weighed about 2 tons.
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