Loc. 23, Sekwi Brook South (Ediacaran of Canada)

Also known as Loc. 23, Sekwi Brook South, Blueflower Fm., Canada - Narbonne and Aitken 1990

Where: Northwest Territories, Canada (64.7° N, 132.0° W: paleocoordinates 48.1° S, 82.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Nama other zone, Disc Member (Blueflower Formation), Ediacaran (635.0 - 541.0 Ma)

• The terminal Windermer Formations make up four, kilometer-scale, shallowing-upward, carbonate capped Grand Cycles. The Gametrail, Sheepbed, Blueflower, and Risky Formations art thought to be equivalent to the the Redkino "Series" of Vendian Age on the Russian Platform. Should be lower part of Disc member given lithology & position in formation.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified shale and sandstone

• Dark color, deep-water shale and mudstone (59%)turbidite sandstones (15%), and limestones of turbiditic and grain flow origin (26%)

Size class: macrofossils

Preservation: cast, mold/impression, trace

Collection methods: bulk,

• Float that could not be tied down definitely stratigraphically was not included in the study material. Ediacaran body fossils occur predominantly as raised features on the bottom of beds and very rarely as depressed features on soles. The Sekwi Brook fauna represent the first Ediacaran assemblage on a slope setting/

Primary reference: G. Narboone and J. Aitken. 1990. Ediacaran fossils from the Sekwi Brock Area, Mackenzie Mountains, Northwestern Canada. Palaeontology 33(4):945-980 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10349: authorized by Mark Patzkowsky, entered by Phil Borkow on 10.04.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• It appears that the listed faunas from the Mackenzie Mountains can be correlated with those of the Wernecke Mountains creating a single "Windermere fauna"
Sekwia excentrica
  -
Sekwia excentrica Hofmann 1981
 Ichnofossils -
Helminthoidichnites tenuis Fitch 1850
trace fossil
Torrowangea rosei Webby 1970
trace fossil