Marine Invertebrate Fossils of Pierre Shale, Kremmling, CO

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Pinna laqueata (razor clam) image for comparison with previous 4 images. Species also occurs in the following:\n\nNew Jersey: Monmouth Group: Navesink and Mount Laurel Fms; Matawan Group: Woodbury and Merchantville Fms\nDelaware: Matawan Group: Merchantville\nMississippi: Owl Creek Formation (type specimen)\nTexas: Taylor Group: Wolfe City and Anacacho Fms; Navarro Group: Nacatoch Sand (Campanian to Early Maastrichtian ~ same level as the Pierre Shale in Grand County, CO.)\nNotes: Izett, Cobban, & Gill's paper on the Pierre near Kremmling did not list Pinna, nor did Meek & Hayden, Reeside, Conrad, etc.\n{from Keith at Creteceousfossils.com}
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Pinna laqueata (razor clam) image for comparison with previous 4 images. Species also occurs in the following:

New Jersey: Monmouth Group: Navesink and Mount Laurel Fms; Matawan Group: Woodbury and Merchantville Fms
Delaware: Matawan Group: Merchantville
Mississippi: Owl Creek Formation (type specimen)
Texas: Taylor Group: Wolfe City and Anacacho Fms; Navarro Group: Nacatoch Sand (Campanian to Early Maastrichtian ~ same level as the Pierre Shale in Grand County, CO.)
Notes: Izett, Cobban, & Gill's paper on the Pierre near Kremmling did not list Pinna, nor did Meek & Hayden, Reeside, Conrad, etc.
{from Keith at Creteceousfossils.com}