Researchers gain new understanding of Triceratops evolution

July 1, 2014 12:42 PM

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( —A study of Triceratops fossils at Hell Creek Formation in Montana has provided insight into the evolution of these dinosaurs. John Scannella of Montana State University and his team examined more than 50 skulls of the two known Triceratops species and, based on morphological differences and placement in the strata, determined that one species transformed into the other. The research appears in the Proceedings of the National Academy of Sciences.

Paleontologists have identified two Triceratops species, Triceratops horridus and Triceratops prorsus, based on the length and shape of the horns and the size and structure of the skull. However, they have been unsure of the evolutionary relationship between the two. The two species could have been ...

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