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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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Volume 3, issue 2
J. Micropalaeontol., 3, 17, 1984
https://doi.org/10.1144/jm.3.2.19
© Author(s) 1984. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 3, 17, 1984
https://doi.org/10.1144/jm.3.2.19
© Author(s) 1984. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Sep 1984

01 Sep 1984

Middle Devonian acritarch biostratigraphy of North America

Reed Wicander Reed Wicander
  • Department of Geology, Central Michigan University, Mt. Pleasant, Michigan 48859, U.S.A

Abstract. The known stratigraphic ranges of 66 acritarch species from eight independently dated Middle Devonian sections in North America are plotted. Twenty seven species are restricted to the Middle Devonian in North America, yet only 12 species occur in more than one section. None of these 12 species is, as yet, known to occur outside North America. This apparent endemism is believed to be due partly to the lack of study of contemporaneous assemblages from elsewhere in the world.

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