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Stiptognathus new genus (Conodonta: Ibexian, Lower Ordovician), and the apparatus of Stiptognathus borealis (Repetski, 1982)

Published online by Cambridge University Press:  14 July 2015

R. L. Ethington ,
Oliver Lehnert  and
J. E. Repetski
R. L. Ethington
Affiliation:
Department of Geological Sciences, University of Missouri–Columbia 65201
Oliver Lehnert
Affiliation:
Institut für Geologie und Mineralogie, Universität Erlangen-Nürnberg, Germany
J. E. Repetski
Affiliation:
United States Geological Survey, Reston, Virginia 20192
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Abstract

Collections from upper Ibexian (Tulean Stage) rocks of western United States, from the Canning Basin in western Australia, and from the Argentine Precordillera contain a seximembrate apparatus of multidenticulate conodonts whose elements have been included by authors in species of Prioniodus Pander, 1986, and Reutterodus Serpagli, 1974. The individual elements as well as the complete apparatus are not consistent with assignment of the species to either of these genera or to any other extant genus. A new generic name, Stiptognathus Ethington, Lehnert, and Repetski, is proposed with Reutterodus borealis Repetski, 1982, as type species. The apparatus consists of Pa, Pb, Sa-c, and M elements; the genus represents either the Prioniodontidae or the Periodontidae.

Type
Research Article
Information
Journal of Paleontology , Volume 74 , Issue 1 , January 2000 , pp. 92 - 100
Copyright
Copyright © The Paleontological Society 2000

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