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A Lower Devonian ammonoid, Mimagoniatites nearcticus n. sp., from the Canadian Arctic

Published online by Cambridge University Press:  14 July 2015

Eric C. Prosh
Eric C. Prosh*
Affiliation:
Department of Geology, University of Western Ontario, London, Ontario N6A 5B7, Canada
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Abstract

A newly discovered ammonoid, Mimagoniatites nearcticus n. sp., is described from upper Zlichovian–lower Dalejan (Lower Devonian) strata in the Canadian Arctic Archipelago. This species is distinguished primarily by its extremely narrow profile and high degree of whorl involution. It is the most gracile species so far known in the genus, and displays possible kinship to Parentites praecursor Bogoslovsky. This record constitutes the first definite occurrence of a Lower Devonian ammonoid from the Canadian Arctic Archipelago.

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Type
Research Article
Information
Journal of Paleontology , Volume 61 , Issue 5 , September 1987 , pp. 974 - 981
Copyright
Copyright © The Paleontological Society 

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