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

Authors

  • Pierre-Yves Gagnier Grande Galerie de l’Evolution, Muséum National d’Histoire Naturelle a` Paris, 36 rue Geoffroy Saint-Hilaire, Paris, 75005
  • Gavin F. Hanke Department of Biological Sciences and Laboratory for Vertebrate Paleontology, University of Alberta, Edmonton, Alberta T6G 2E9
  • Mark V.H. Wilson Department of Biological Sciences and Laboratory for Vertebrate Paleontology, University of Alberta, Edmonton, Alberta T6G 2E9

Keywords:

Vertebrata, Acanthodii, Tetanopsyrus lindoei, Early Devonian, Lochkovian, systematics

Abstract

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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Published

2003-06-01

Issue

Vol. 49 No. 2 (1999): Circum-Arctic Palaeozoic Vertebrates

Section

Articles