Also known as Loc. 2, Wynniatt Formation, Victoria Island, Canada - Hofmann and Rainbird 1994
Where: Nunavut, Canada (72.2° N, 111.5° W: paleocoordinates 56.9° S, 72.6° 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
Size classes: mesofossils, microfossils
Preservation: adpression, 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 10558: authorized by Mark Patzkowsky, entered by Phil Borkow on 22.05.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Chuaria circularis Walcott 1899 acritarchs |