GSC 79 JDL 97/A, Bylot Island (Stenian of Canada)

Where: Nunavut, Canada (73.3° N, 80.5° W: paleocoordinates 0.0° N, 0.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Victor Bay Formation (Uluksan Group), Stenian (1200.0 - 1000.0 Ma)

• The lower part of the Victor Bay Formation, below the fossiliferous samples, was Re-Os dated to 1.046 +/- 0.016 Ga in Gibson et al., 2017.

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, stromatolitic, cherty/siliceous dolomite

• Accumulated under strongly evaporitic, shallow, environmentally restricted conditions

Size class: microfossils

Preservation: permineralized, original carbon, replaced with silica

Reposited in the GSC

Collection methods: peel or thin section

Primary reference: H. J. Hofmann and G. D. Jackson. 1991. Shelf-facies microfossils from the Uluksan Group (Proterozoic Bylot Supergroup), Baffin Island, Canada. Journal of Paleontology 65:361-382 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 227544: authorized by Matthew Clapham, entered by Matthew Clapham on 15.10.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Coccogoneae
 Chroococcales - Chroococcaceae
Sphaerophycus medium Horodyski and Donaldson 1980
Eosynechococcus medius Hofmann 1976
Myxococcoides minor
  -
Myxococcoides minor Schopf 1968
Myxococcoides
  -
Myxococcoides grandis Horodyski and Donaldson 1980