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Paleocene echinoid faunas of the eastern United States

  • Louis G. Zachos (a1)

Twenty-one species of echinoid are reported from Paleocene rocks of the eastern United States along the outcrop belt from Texas to New Jersey. Six of these are strictly early Paleocene age (Danian), nine strictly late Paleocene age (Thanetian), five range throughout the Paleocene, and one previously reported Paleocene species (Diplodetus moscovensis) is most likely a Cretaceous species. Two new species are described, Salenia palmyra n. sp., from the Danian Clayton Formation in Alabama and Georgia, and Ova rancoca n. sp., from the Thanetian Vincentown Formation in New Jersey. One new species from the Clayton Formation in Mississippi, Arbaciella? sp., is left in open nomenclature.

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W.A. Berggren , and P.N. Pearson , 2005, A revised tropical to subtropical Paleogene planktonic foraminiferal zonation: Journal of Foraminiferal Research, v. 35, p. 279298.

A. Kroh , P. Madeira , and E. Haring , 2012, Species distributions: virtual or real—the case of Arbaciella elegans (Echinoidea: Arbaciidae): Journal of Zoological Systematics and Evolutionary Research, v. 50, p. 99105.

E.A. Mancini , and B.H. Tew , 1991, Relationships of Paleogene stage and planktonic foraminiferal zone boundaries to lithostratigraphic and allostratigraphic contacts in the eastern Gulf Coastal Plain: Journal of Foraminiferal Research, v. 21, p. 4866.

C. Scheibner , and R.P. Speijer , 2008, Late Paleocene–early Eocene Tethyan carbonate platform evolution—A response to long- and short-term paleoclimatic change: Earth-Science Reviews, v. 90, p. 71102.

E.A. Smith , 1910, Cretaceous-Eocene Contact: Tombigbee River, Alabama: The Journal of Geology, v. 18, p. 430434.

G. Stefanini , 1924, Relations between American and European Tertiary echinoid faunas: Bulletin of the Geological Society of America, v. 35, p. 827846.

J. Zachos , M. Pagani , L. Sloan , E. Thomas , and K. Billups , 2001, Trends, rhythms, and aberrations in global climate 65 Ma to present: Science, v. 292, p. 686693.

L.G. Zachos , and D. Levin , 2010, Rediscovery of figured Paleogene echinoid specimens from Clark and Martin (1901): Journal of Paleontology, v. 84, p. 148.

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Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
  • URL: /core/journals/journal-of-paleontology
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