Monoclonius facts for kids
Monoclonius was about 16 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.
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Monoclonius Facts for Kids. Kiddle Encyclopedia.