Sandpile Group, GSC 35169 (Silurian of Canada)

Where: British Columbia, Canada (59.1° N, 128.2° W: paleocoordinates 4.0° N, 61.2° W)

• small collection-level geographic resolution

When: Coralline Member, Clinton (439.0 - 438.0 Ma)

• No formation name; Sandpile Group, "Coralline" member.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; black, gray, cherty/siliceous dolomite and chert

• dolostones, dark-gray black, finely crystalline, weathering brown-gray, in beds mostly 2-8 ft thick, some beds slightly siliceous, chert nodules present (amounting to >5% beds).

Preservation: replaced with silica

Reposited in the GSC

Primary reference: B. S. Norford. 1962. The Silurian fauna of the Sandpile Group of northern British Columbia. Geological Survey of Canada Bulletin 78:1-51 [J. Alroy/M. Sommers]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5148: authorized by John Alroy, entered by Mike Sommers on 31.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Abundantly fossiliferous in lower 25 ft. with silicified rugose and tabulate corals, very rare brachiopods, some beds with a profusion of single species (e.g., a 6-in Coenites rectilineatus bed), but most with a mixture of many species. Fossils rare in the upper 70 ft." Additionally, authors state that crinoid columns are present "at almost every locality" and unidentified rugose corals "at many localities."
Anthozoa
 Cystiphyllida - Fletcheriidae
Fletcheria major n. sp. horn coral
 Stauriida - Streptelasmatidae
 Heliolitida - Halysitidae
Halysites occidens n. sp. tabulate coral
Halysites nitida Lambe 1899 tabulate coral
Catenipora simplex tabulate coral
 Favositida - Favositidae
 Favositida - Pachyporidae
Thamnopora sp. Steininger 1831 tabulate coral
Rhynchonellata
 Atrypida - Glassiidae
 Pentamerida - Pentameridae
Pentamerus sp. Sowerby 1813
 Pentamerida - Clorindidae
? Clorinda sp. Barrande 1879
 Spiriferida - Reticulariidae
"Howellella pauciplicata" = Spirinella pauciplicata
"Howellella pauciplicata" = Spirinella pauciplicata Waite 1956