Rugosa of Redknife Fmn, Jean-Marie Mbr, Liard River/Bouvier River area, NWT (Devonian of Canada)

Where: Northwest Territories, Canada (62.0° N, 121.0° W: paleocoordinates 4.1° S, 37.5° W)

• coordinate estimated from map

• basin-level geographic resolution

When: Jean-Marie Member (Redknife Formation), Frasnian (382.7 - 372.2 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal limestone

• "...a sequence of mainly calcareous beds assigned to the Redknife Formation. The lower member...the Jean-Marie Member, is a thin (2-12 m thick in outcrop), richly fossiliferous bioclastic limestone bearing a diverse rugosan assemblage...The unnamed upper member...is a recessive unit comprising calcareous shales with thin interbeds of more resistant argillaceous and sandy limestones..."

Primary reference: R. A. McLean and J. E. Sorauf. 1988. The distribution of rugose corals in Frasnian outcrop sequences of North America. In N. J. McMillan, A. F. Embry, and D. J. Glass (eds.), Devonian of the World, Volume III. Canadian Society of Petroleum Geologists. Calgary, Alberta, Canada 379-396 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 40143: authorized by Michael Foote, entered by Michael Foote on 18.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Rugosa only
Anthozoa
 Stauriida - Kyphophyllidae
Tabulophyllum spp. Fenton and Fenton 1924 horn coral
 Stauriida - Disphyllidae
Disphyllum sp. Fromentel 1861 horn coral
 Stauriida - Phillipsastreidae
Peneckiella sp., Macgeea telopea, "Medusaephyllum nevadense" = Pachyphyllum, "Medusaephyllum sp." = Pachyphyllum
Peneckiella sp. Soshkina 1939 horn coral
Macgeea telopea horn coral
"Medusaephyllum nevadense" = Pachyphyllum horn coral
"Medusaephyllum sp." = Pachyphyllum Milne-Edwards and Haime 1850 horn coral
 Stauriida - Cyathophyllidae
Mictophyllum sp. Lang and Smith 1939 horn coral
 Rugosa -