Devon Island Formation, Devon Island, GSC loc. C33704 (Devonian of Canada)

Where: British Columbia, Canada (76.3° N, 92.7° W: paleocoordinates 2.9° S, 25.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Devon Island Formation, Lochkovian (419.2 - 410.8 Ma)

• No specific bed level given by Smith. Formation ranges from Late Silurian to Early Devonian; faunal list combined with Smith's correlation and range charts suggests that collection is early Lochkovian.

• bed-level stratigraphic resolution

Environment/lithology: marine; calcareous mudstone

• Deposits in this region are of two general kinds: shallow-water stable carbonate platform (generally in the NW part of Arctic Archipelago) and deeper basinal facies (generally to the SE). This collection seems to be in the former, based on Smith's maps.

•SEP: environmental call here is impossible without additional information and I have not found a good source yet; lithological description is more consistent with basinal facies

• "thinly bedded, laminated, calcareous mudstone"

Preservation: replaced with silica

Reposited in the GSC

Primary reference: R. E. Smith. 1980. Lower Devonian (Lochkovian) biostratigraphy and brachiopod faunas, Canadian arctic islands. Geological Survey of Canada Bulletin 308:1-155 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26572: authorized by Michael Foote, entered by Michael Foote on 17.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Brachipods only.
Show authors, comments, and common names
Strophomenata
 Strophomenida - Chonetidae
Chonetidae indet.
Chonetidae indet. Bronn 1862
 Orthotetida - Areostrophiidae
Eoschuchertella sp.
Rhynchonellata
 Pentamerida - Gypidulidae
Gypidula sp.
Gypidula sp. Hall 1867
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia gutta
 Orthida - Draboviidae
Salopina submurifer
 Orthida - Schizophoriidae
Schizophoria ? fragilis
 Spiriferida -
Notoparmella gilli
 Spiriferida - Delthyrididae
Howellella sp.
Howellella sp. Kozlowski 1946
 Athyridida - Anoplothecidae
Coelospira exilicosta n. sp.
 Athyridida - Nucleospiridae
Nucleospira sp.
Nucleospira sp. Hall 1859
 Atrypida - Atrypinidae
"? Arctispira canadensis n. sp." = Rhynchogilviella canadensis
"? Arctispira canadensis n. sp." = Rhynchogilviella canadensis Smith 1980