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The second species
A nearby volcano blast killed and buried the inhabitants of the lake in a 4
plates and illustrations
and Clovis-style points disappeared from the continental United States
Adena sites are concentrated in a relatively small area - maybe 300 sites in the central Ohio Valley
Triceratops horridus, horn on base Iguanodon The second speciesTriceratops horridus Brow horn This horn is 28 inches long and 23 inches in circumference near the base. It is from the Cretaceous age Lance Formation of Wyoming. Just look at all of the blood grooves on this fantastic horn. Like antlers and horns on modern day mammals, Triceratops horns were probably used more for show (and thus mate selection) than for defense. But if you would rather forget we said that and instead reminisce on the more romantic T.