Tetanopsyrus lindoei gen. et sp. nov., an Early Devonian acanthodian from the Northwest Territories, Canada

An acanthodian, Tetanopsyrus lindoei gen. et sp. nov., is described. All specimens are from Lochkovian of northwestern Canada. The body is covered with unornamented, flat scales, with two finely noded dorsal spines, finely noded anal, pelvic and pectoral spines, a high scapulocoracoid, and toothless...

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Bibliographic Details
Main Authors: Gagnier, Pierre-Yves, Hanke, Gavin F., Wilson, Mark V.H.
Format: Article in Journal/Newspaper
Language:English
Published: Institute of Geology University of Warsaw 2003
Subjects:
Vertebrata
Acanthodii
Tetanopsyrus lindoei
Early Devonian
Lochkovian
systematics
Northwest Territories
Canada
Arctic
Online Access:https://gq.pgi.gov.pl/agp/article/view/10325
Description
Summary:An acanthodian, Tetanopsyrus lindoei gen. et sp. nov., is described. All specimens are from Lochkovian of northwestern Canada. The body is covered with unornamented, flat scales, with two finely noded dorsal spines, finely noded anal, pelvic and pectoral spines, a high scapulocoracoid, and toothless jawbones with large, flat, crushing surfaces. Tetanopsyrus lacks pectoral dermal plates and intermediate pre-pelvic fin spines. Tetanopsyrus is classified in the new family Tetanopsyridae, and possible relationships of the family to diplacanthids are discussed.

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