Unit 48, Storm Creek Section, Member 3, 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: 3 Member (Tunnel Mountain Formation), Chesterian (335.5 - 323.2 Ma)

• Unit 48 of Storm Creek Section (counting from the top). This unit is 2 feet thick.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, shelly/skeletal, gray, argillaceous dolomite

• "Dolomite, like47, but grayer, jammed with brachiopods and stomatolitic algae." Unit 47 description: "Dolomite, highly argillaceous, dark gray, weathering dull buffy, laminated but hard and blocky; near middle is 2-foot band of clearer, gray, slightly bioclastic limestone with a little chert. Few fossils. Irregular top compensates base of 46."

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 62383: authorized by Noel Heim, entered by Noel Heim on 19.07.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Dictyclostus parvus
Foraminifera
 Fusulinoidea - Eostaffellidae
? Millerella sp.
 Endothyroidea - Endothyridae
Plectogyra maxima, Plectogyra pandorae
Rhynchonellata
 Spiriferida - Spiriferidae
"Spirifer cf. leidyi" = Anthracospirifer leidyi
"Spirifer cf. leidyi" = Anthracospirifer leidyi Norwood and Pratten 1855
 Athyridida - Athyrididae
Cleiothyridina sublamellosa, Composita trinuclea
 Terebratulida - Cranaenidae
Girtyella brevilobata
Ostracoda
 Palaeocopida - Sansabellidae
Sansabella cf. ampla
 Platycopida - Cavellinidae
Cavellina exila
 Podocopida - Acratiidae
Acratia cf. mucronata
 Podocopida - Bairdiidae
Bairdia nasuta, Bairdia sp., "Bairdia cestriensis" = Orthobairdia cestriensis
Bairdia sp. M'Coy 1844 ostracod
Bairdia n. spp.
"Bairdia cestriensis" = Orthobairdia cestriensis Ulrich 1891 ostracod