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and a pygidium
In 2006 a new species of Pachycephalosaur was named
3 million years old
Make them roar
which include the calyx
Amphibian Trackway Ankylosaurus and a pygidiumThis rare amphibian trackway was found in a strip mine of the Bakerstown Coal (Conemaugh Group) Pennsylvanian, Tucker County, WV. The tracks were found in 1982, and show how this small amphibian walked across a mud flat in prehistoric WV. The original specimens are housed at Carnegie Museum, WV Geological Survey and the Smithsonian. These tracks are under study and pending naming go by the nickname Tucker. Shipping Included