A new species of Corvaspis (Agnatha, Heterostraci) from the Upper Silurian to Lower or Middle Devonian of the North-West Territories, Canada

19 4 Thu, 01/01/1976 - 12:00 November 757 766

LOEFFLER, E. J., DINELEY, D. L. 1976. A new species of Corvaspis (Agnatha, Heterostraci) from the Upper Silurian to Lower or Middle Devonian of the North-West Territories, Canada. Palaeontology, 19, 4, 757–766.

E. J. Loeffler and D. L. Dineley A new species of Corvaspis, C. arctica, is described from the Peel Sound Formation of Somerset Island, North-west Territories, Canada, where it occurs in association with Hemicyclaspis murchisoni (Egerton), an index fossil for the lowest Downtonian of Britain. C. arctica sp. nov. is considered to have been a streamlined form, with an undivided dorsal shield; it is probably related to the Cyathaspididae. The Palaeontological Association (Free Access)