Decoropugnax Community, upper Whittaker Formation, NWT (Silurian of Canada)

Where: Northwest Territories, Canada (64.0° N, 126.5° W: paleocoordinates 6.6° N, 49.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Whittaker Formation, Wenlock (433.4 - 427.4 Ma)

• Upper one-third of Whittaker Formation. "Probably Wenlock"

Environment/lithology: open shallow subtidal; dolomite

• "Low diversity, high dominance fauna, massive dolomite, paleogeographic setting near eastern (landward) margin of the shelf deposits, and the generally articulated nature of the shells suggests deposition in shallow, somewhat restricted and relatively quiet water, possibly intertidal, as is commonly the case the the Rhynchonellid Community as well."

•SEP environmental call based on given information

• "dolomite"

Primary reference: A. C. Lenz. 1999. Wenlockian to Pragian brachiopod communities of the northern Canadian Cordillera. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 784-792 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24921: authorized by Michael Foote, entered by Michael Foote on 22.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Atrypida - Atrypinidae
 Atrypida - Glassiidae
? Glassia sp. Davidson 1881
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Innaechiidae