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Keywords from Image Description:
The North American Crinoidea camerata PLATE LX . lMERATA Helioiype Priming Cn Boston PLATE LX Illustration Atlas biodiversitylibrary org title Springer Frank Wachsmuth Charles Biodiversity Heritage Library National Fossil Day The North American Crinoidea camerata atlas Crinoidea Fossil Echinodermata North America Smithsonian