Where: Nunavut, Canada (72.2° N, 79.8° W: paleocoordinates 0.0° N, 0.0° E)

• coordinate stated in text

• outcrop-level geographic resolution

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

• Formerly assigned to the Society Cliffs Formation, which was separated into four units by Turner (2009). Based on the mapped location, this collection belongs to the Angmaat Formation. The age of the former Society Cliffs Formation is constrained by Re-Os dating of the underlying Arctic Bay Formation (1.048 +/- 0.012 Ga) and the overlying Victor Bay Formation (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

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 227552: authorized by Matthew Clapham, entered by Matthew Clapham on 15.10.2022

Creative Commons license: CC BY (attribution)