GSC Loc. 91308 - Amund Ringnes Island [Deer Bay Fm] (Cretaceous of Canada)

Where: Northwest Territories, Canada (78.6° N, 97.9° W: paleocoordinates 70.7° N, 14.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Deer Bay Formation, Early/Lower Valanginian (140.2 - 136.4 Ma)

• STRATIGRAPHIC RELATIONS: From the Deer Bay Fm, for which lithostratigraphic relations are not discussed. AGE: middle part of lower Valanginian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From the upper Deer Bay Fm; Bed -14 situated about 225 m below the assigned base of the Isachsen Fm.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

• ENVIRONMENT: Not reported in text, but apparently marine siliciclastic.
• SPECIFIC LITHOLOGY: Siliciclastic. LITHIFICATION: Lithified, on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

Reposited in the GSC

Collection methods: surface (in situ),

• COLLECTOR: Not stated in text. REPOSITORY: Geological Survey of Canada (GSC).

Primary reference: J. A. Jeletzky and E. Kemper. 1988. Comparative paleontology and stratigraphy of Valanginian Polyptychitinae and Simbirskitinae in Sverdrup Basin (Arctic Canada) and lower Saxony Basin (northwest Germany). Geological Survey of Canada Bulletin 377:1-220 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 87534: authorized by Austin Hendy, entered by Austin Hendy on 18.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to described ammonoids. NOMENCLATURE: Authoritative publication with modern nomenclature and species-resolution identifications.
Cephalopoda
 Ammonitida - Polyptychitidae
"Siberiptychites (Siberiptychites) aff. stubendorffi" = Polyptychites (Siberiptychites) stubendorffi
"Siberiptychites (Siberiptychites) aff. stubendorffi" = Polyptychites (Siberiptychites) stubendorffi Schmidt 1872 ammonite