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Article

The Early Mississippian (Osagean) ammonoid Dzhaprakoceras (Cephalopoda) from Utah

  • Morris S. Petersen (a1), Dieter Korn (a2) and Jürgen Kullmann (a2)
Abstract

The Mississippian ammonoid genus Dzhaprakoceras Popov, 1965, well known in the eastern hemisphere, is reported from the Delle Member of the Deseret Limestone at Flux and Lakeside Mountains, Tooele County, Utah. This is the first report of the genus in western North America. The ammonoids, D. gordoni n. sp. and D. djaprakense (Librovitch, 1927) occur with mehli—Lower texanus Zone conodonts indicating a middle Osagean (earliest Viséan) age.

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COPYRIGHT: © The Paleontological Society 
References
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Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
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