Unit 25, Storm Creek Section, Member 1, Tunnel Mountain Fm (Carboniferous of Canada)

Where: Alberta, Canada (50.5° N, 114.7° W: paleocoordinates 8.6° N, 37.1° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: 1 Member (Tunnel Mountain Formation), Chesterian (339.4 - 318.1 Ma)

• Unit 25 of Storm Creek Section (counting from the top). This unit is 22 feet thick.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, fine-grained, dolomitic, gray, argillaceous, silty, sandy limestone

• "Dolomite, black, thick bedded, cryptocrystalline; lowest (3 feet) bed 50% bioclastic, with large masses of black chert. Large heads of Syringopora silicified in top and base."

Primary reference: G. O. Raasch. 1958. Upper Paleozoic sections at Highwood Pass, Alberta. Jurassic and Carboniferous of Western Canada 190-215 [N. Heim/N. Heim]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 62375: authorized by Noel Heim, entered by Noel Heim on 19.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pectinida - Limipectinidae
Acanthopecten sp. Girty 1903 scallop
 Fenestrida - Fenestellidae
Fenestella indet. Lonsdale 1839
fenestellid bryozoans
 Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
Spirifer sp. (poor)
Porifera indet. Grant 1836
sponge spicules