Silurian (Wenlock) brachiopods from the southern Mackenzie Mountains, Northwest Territories

Twelve species of brachiopods of probable Wenlock age are described from a fauna of approximately 39 species from the upper part of the Whittaker Formation of the southern Mackenzie Mountains. The fauna is probably from the near-platform-edge benthic setting and is numerically dominated by smooth-sh...

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Bibliographic Details
Published in:Canadian Journal of Earth Sciences
Main Author: Lenz, Alfred C.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1989
Subjects:
Online Access:http://dx.doi.org/10.1139/e89-103
http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-103
Description
Summary:Twelve species of brachiopods of probable Wenlock age are described from a fauna of approximately 39 species from the upper part of the Whittaker Formation of the southern Mackenzie Mountains. The fauna is probably from the near-platform-edge benthic setting and is numerically dominated by smooth-shelled pentamerids.Species described are ?Dolerorthis sp. 1, Epitomyonia triseptata Lenz, Leangella sp., Rugolepyros latispondylus n.gen., n.sp. (a probable pentamerid), Reveroides sp., Harpidium (Lissocoelina) sp., Lissidium erugata n.gen., n.sp. (pentamerinid), Gracianella lissubmra Johnson, Boucot and Murphy, ?Reticulatrypa sp. 1, Whitfieldella cf. upsilon (Barrande), Atrypina (Atrypinopsis) cf. biconvexa Rong and Wang, and Glassia biloba n.sp. (lissatrypid).