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Late Ordovician conulariids from Manitoba, Canada

Published online by Cambridge University Press:  20 May 2016

Sean P. Robson  and
Graham A. Young
Sean P. Robson
Affiliation:
The Manitoba Museum, 190 Rupert Avenue, Winnipeg, Manitoba R3B 0N2, Canada
Graham A. Young
Affiliation:
The Manitoba Museum, 190 Rupert Avenue, Winnipeg, Manitoba R3B 0N2, Canada
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Abstract

Six species of conulariids, assigned to four genera, were recovered from the type locality of the Cat Head Member of the Red River Formation in southern Manitoba, Canada. These are middle Katian (Late Ordovician) in age. The most abundant conulariid species from this locality, Conularia porcella, is new, and is represented by 21 specimens. Additionally, 28 three-dimensionally preserved micromorphic conulariids, assigned to Eoconularia aff. loculata, were recovered using acetic acid preparation from limestone samples of late Katian (Late Ordovician) age. These samples had been collected from Churchill, northern Manitoba, by the Geological Survey of Canada's J. B. Tyrrell in 1894. These taxa are unusually abundant for conulariids, which are normally represented by only a few specimens from any given locality, and this abundance may be a reflection of the exceptional preservation at these two localities.

Type
Research Article
Information
Journal of Paleontology , Volume 87 , Issue 5 , September 2013 , pp. 775 - 785
Copyright
Copyright © The Paleontological Society 

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