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A new Silurian retiolitid graptolite from Arctic Canada

Published online by Cambridge University Press:  20 May 2016

A. C. Lenz
A. C. Lenz*
Affiliation:
Department of Geology, University of Western Ontario, London, Ontario N6A 5B7, Canada
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Extract

Retiolitid graptolites are a very common component in Silurian graptolite faunas of the Canadian Arctic, both in flattened form on shale surfaces and in uncompressed form in limestone concretions found in the enclosing shales (Lenz and Melchin, 1987). Upper Wenlock and Ludlow rocks are particularly prolific, having yielded about 20 species of retiolitids to date. One of the collections made during the summer of 1991 was a single piece of talus-derived shale containing 10 complete and slightly fragmented retiolitids. These specimens are morphologically unique, and their description is the purpose of this note.

Information

Type
Taxonomic Notes
Information
Journal of Paleontology , Volume 67 , Issue 1 , January 1993 , pp. 160 - 162
Copyright
Copyright © The Paleontological Society 

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References

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