Some Pacific Faunal Province graptolites from the Ordovician of northern Yukon, Canada

Tylograptus, Sinograptus, Pterograptus, Syndyograptus, and Reteograptus pulcherrimus are described from northern Yukon. The last three taxa are recognized for the first time in northern Canada. Reteograptus pulcherrimus occurs in Ashgillian age beds, the remainder in Llanvirnian and Llandeilian beds...

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Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Author: Lenz, A. C.
Format: Article in Journal/Newspaper
Language:French
Published: Canadian Science Publishing 1977
Subjects:
Online Access:http://dx.doi.org/10.1139/e77-165
http://www.nrcresearchpress.com/doi/pdf/10.1139/e77-165
Description
Summary:Tylograptus, Sinograptus, Pterograptus, Syndyograptus, and Reteograptus pulcherrimus are described from northern Yukon. The last three taxa are recognized for the first time in northern Canada. Reteograptus pulcherrimus occurs in Ashgillian age beds, the remainder in Llanvirnian and Llandeilian beds. All taxa are found in regions bordering the present Pacific or Arctic Oceans; however, Pterograptus also occurs in the Baltic region, and Syndyograptus is found in the Appalachian region.