Notice of a New Crinoid and a New Mollusk from the Portage Rocks of New York

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Notice Of A New Crinoid And A New Mollusk From The Portage Rocks Of New York: (Maragnicrinus Portlandicus, Sp. N.) (Onychocardium Portlandicum, Sp. N.); Volume 21 Of Bulletin Of The American Museum Of Natural History
Robert Parr Whitfield
By Order of the Trustees of the American Museum of Natural History, 1905
Science; Paleontology; Maragnicrinus portlandicus; Onychocardium portlandicum; Paleontology; Science / Paleontology