News From the Field
Fresh analysis of dinosaur skulls by Penn researchers finds three species are one
August 9, 2013
A new analysis of dinosaur fossils by University of Pennsylvania researchers has revealed that a number of specimens of the genus Psittacosaurus--once believed to represent three different species--are all members of a single species. The differences among the fossil remains that led other scientists to label them as separate species in fact arose from how the animals were buried and compressed, the study found.
University of Pennsylvania
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