A long, long time ago, magnificent creatures roamed the Earth. Although these creatures may have varied greatly in size, shape, color, or dietary needs, the one thing that these creatures all had in common was a specific clade: Dinosauria. A part of this clade was one dinosaur in particular, Triceratops horridus, which is Greek for “three-horn face”. They received this name because of the three horns protruding from their face: two long ones above their eyes and a shorter one from their nose. Fossil evidence shows that Triceratops horridus lived during the Late Cretaceous period and was one of the last dinosaurs to exist before the Cretaceous-Tertiary extinctionoccurring approximately 65 million years ago. Although these dinosaurs have long since been extinct, they have certainly left their mark on Evolution. Their presence in fossils can tell us about the organisms themselves, what the environment was like during the time they lived, and can help us understand what led to theirextinction in the first place.
"An Overview of the Triceratops,"
The Compass: Vol. 1
, Article 11.
Available at: http://scholarworks.arcadia.edu/thecompass/vol1/iss1/11