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which include the calyx
which are very closely related to modern birds
5-10 pieces on average
with preservational styles dependent on the size of the specimen and the grain size of the host lithology
Amphibian Trackway Ankylosaurus which include the calyxThis 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