Loc. 3. Victoria Island, Amundsen Basin (Ediacaran of Canada)

Also known as Loc. 3, Wynniatt Formation, Victoria Island, Canada - Hofmann and Rainbird 1994

Where: Nunavut, Canada (72.2° N, 111.9° W: paleocoordinates 56.8° S, 72.5° W)

• outcrop-level geographic resolution

When: Tawuia-Chuaria other zone, contact between 2 and 3 Member (Wynniatt Formation), Ediacaran (635.0 - 541.0 Ma)

• Formation located in the Shaler Supergroup. The Wynniatt Formation correlates with the upper part of the Little Dal Group of the Machenzie Mountains 1000km to the southwest. In the Minto Inlier, the Shaler Supergroup comprises a 4-5 km thick sequence of platform marine carbonate, evaporite, and subordinate siliclastic rocks and underlying and overlying fluvial and fluvio-deltaic sandstones. The stratigraphical location of the fossil assemblage is just below and above the contact zone between a distinctive rusty black shale member and the overlying grey dolostone member of the Wynniatt Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy mudstone and carbonaceous conglomerate

• wavy-topped quartz arenite beds within the mudstone at the top of member 2 and overlain by carbonate-pebble conglomerate layers in the base of member 3

Size classes: mesofossils, microfossils

Preservation: adpression, trace, original carbon, replaced with pyrite

Primary reference: H. J. Hofmann and R. H. Rainbird. 1994. Carbonaceous megafossils from the Neoproterozoic Shaler Supergroup of Arctic Canada. Palaeontology 37(4):721-731 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10559: authorized by Mark Patzkowsky, entered by Phil Borkow on 22.05.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Taxonomic list does not include well-preserved organic-walled microfossils, which are under seperate study by N. J. Butterfield.
unclassified
  -
 Life -
Chuaria circularis Walcott 1899 acritarchs