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Journal of Micropalaeontology An open-access journal of The Micropalaeontological Society
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Volume 18, issue 2
J. Micropalaeontol., 18, 124–124, 1999
https://doi.org/10.1144/jm.18.2.124
© Author(s) 1999. This work is distributed under
the Creative Commons Attribution 4.0 License.
J. Micropalaeontol., 18, 124–124, 1999
https://doi.org/10.1144/jm.18.2.124
© Author(s) 1999. This work is distributed under
the Creative Commons Attribution 4.0 License.

  01 Dec 1999

01 Dec 1999

Designation of holotypes for new species of Iapetonudus Nicoll, Miller, Nowlan, Repetski and Ethington and Iapetognathus Landing

Robert S. Nicoll1, James F. Miller2, Godfrey S. Nowlan3, John E. Repetski4, and Raymond L. Ethington5 Robert S. Nicoll et al.
  • 1Australian Geological Survey Organisation, GPO Box 378, Canberra, ACT 2601 Australia
  • 2Department of Geography, Geology and Planning, Southwest Missouri State University, Springfield, Missouri, 65804-0089 USA
  • 3Geological Survey of Canada, 3303 - 33 Street N.W., Calgary, Alberta T2L 2A7 Canada
  • 4United States Geological Survey, MS 926A, National Center, Reston, Virginia 20192 USA
  • 5Department of Geological Sciences, University of Missouri, Columbia, Missouri 65211 USA

Abstract. In the course of publication of a large manuscript on earliest Ordovician conodont species and their utility for biostratigraphy (Nicoll et al., 1999), an error occurred, resulting in the lack of designation of holotypes for the type species of the genus Iapetonudus and some new species of Iapetognathus. Herein, we remedy this error so that the originally published specimens are regarded as fully established holotypes rather than as syntypes in the future.

As the original authors of these species, we establish the following holotypes: For the species Iapetognathus fluctivagus Nicoll, Miller, Nowlan, Repetski and Ethington, we designate the Pa element illustrated on Pl. 11, fig. 6, USNM 498962. For the species Iapetognathus jilinensis Nicoll, Miller, Nowlan, Repetski and Ethington, we designate the Pa element illustrated as Pl. 14, fig. 4, USNM 498973. For the species Iapetognathus landingi Nicoll, Miller, Nowlan, Repetski and Ethington, we designate the Pa element illustrated as Pl. 20, fig. 3, USNM 498996. For the species Iapetonudus ibexensis Nicoll, Miller, Nowlan, Repetski and Ethington, we designate the Pa element illustrated as Pl. 23, fig. 3, USNM 499009.

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