Nadiastrophia from the Headless Formation (Eifelian), Mackenzie Mountains, District of Mackenzie, Northwest Territories

• Published in: Canadian Journal of Earth Sciences
• Main Author: Lenz, A. C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 1973
• Subjects: General Earth and Planetary Sciences; Northwest Territories; Pacific; Mackenzie mountains
• Online Access: http://dx.doi.org/10.1139/e73-136; http://www.nrcresearchpress.com/doi/pdf/10.1139/e73-136

The genus Nadiastrophia previously recorded only from Australia and China, is described from the Headless Formation of the Mackenzie Mountains. This discovery further emphasizes the early Middle Devonian faunal affinities between the Cordilleran and southeastern Pacific regions. The Mackenzie Mountains Nadiastrophia is assigned to a new species, N. mackenziensis.