Phroso Siltstone, Sulphur Mountain Fm - GSC 84225, West Burnt River (Triassic of Canada)

Where: British Columbia, Canada (55.2° N, 122.2° W: paleocoordinates 27.4° N, 33.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Phroso Siltstone Member (Sulphur Mountain Formation), Dienerian (250.5 - 251.2 Ma)

• STRATIGRAPHIC RELATIONS: From 40 thick siltstone of Phroso Siltstone, overlain by 180 ft thick Vega Siltstone. AGE: Dienerian Zone, Sverdrupi zone. LITHOSTRATIGRAPHY: Sulphur Mountain Formation, Vega Phroso Member. STRATIGRAPHIC POSITION: 60 ft above base of section within 40 ft siltstone, whose top is 73 ft above base.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, dolomitic, argillaceous, calcareous, carbonaceous siltstone and lithified, shelly/skeletal limestone

• ENVIRONMENT: No environmental data reported in text.
• SPECIFIC LITHOLOGY: Siltstone and minor bioclastic limestone, siltstone, quartzose, dolomitic, carbonaceous-argillaceous, and very calcareous in part; limestone consists of fragmented, recrystalized shells, forming lenticular beds. LITHIFICATION: Lithification, based on age, and lithology description (dolomitic, very calcareous, recrystalized).

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (in situ),

• COLLECTOR: D.W. Gibson, 1971. REPOSITORY: Presumably GSC (Geological Survey of Canada).

Primary reference: D. W. Gibson. 1972. Triassic stratigraphy of the Pine Pass-Smokey River area, Rocky Mountain foothills and front ranges ofBritish Columbia and Alberta. Geological Survey of Canada Paper 71(30) [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 62474: authorized by Austin Hendy, entered by Austin Hendy on 20.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Probably exhaustive. NOMENCLATURE: Not an authoritative publication, with older nomenclature.
Show authors, comments, and common names
Cephalopoda
 Ceratitida - Paranoritidae
Paranorites sp.
Paranorites sp. Waagen 1895 ceratite