GSC C-11467 (Devonian of Canada)

Also known as Quadrithyris Zone Brachiopods, Cornwallis Is., GSC loc. C11467

Where: Nunavut, Canada (75.0° N, 97.0° W: paleocoordinates 2.9° S, 26.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Lochkovian (419.2 - 410.8 Ma)

• Age of faunas discussed at length in this paper. Author concludes they are correlative with Quadrithyris Zone of Nevada, and of Late Lochkovian age.

• bed-level stratigraphic resolution

Environment/lithology: slope; limestone

• "...almost all preserved as disarticulated shells in dark limestone. This assemblage undoubtedly has undergone some small amount of postmortem transportation, perhaps downslope from an original close association with a biostromal development, as appears to be the situation at Coal Canyon in central Nevada."

•SEP environmental call based on given info and regional context

• "dark limestone"

Reposited in the GSC

Primary reference: J. G. Johnson. 1975. Devonian brachiopods from the Quadrithyris Zone (Upper Lochkovian), Canadian arctic archipelago. Geological Survey of Canada Bulletin 235:5-36 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26651: authorized by Michael Foote, entered by Michael Foote on 21.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Paper is on brachiopods. Some other faunal elements are mentioned for some collections, especially when biostratigraphically relevant.
Show authors, comments, and common names
unclassified
  -
? Undisprifer sp.
Rhynchonellata
 Orthida - Hesperorthidae
Dolerorthis sp.
Dolerorthis sp. Schuchert and Cooper 1931
 Orthida - Dalmanellidae
Cortezorthis cf. windmillensis, Protocortezorthis cf. fornicatimcurvata
 Orthida - Schizophoriidae
Schizophoria sp.
Schizophoria sp. King 1850
 Atrypida - Karpinskiidae
Toquimaella kayi
Toquimaella kayi Johnson 1967
 Atrypida - Atrypidae
Atrypa sp.
Atrypa sp. Dalman 1828
 Rhynchonellida - Machaerariidae
Thliborhynchia kerri n. sp.
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia "sp. B"
Ancillotoechia "sp. B" Havlicek 1959
 Pentamerida - Gypidulidae
Gypidula cf. kayseri, Carinagypa careopleura n. sp.
Strophomenata
 Orthotetida - Chilidiopsidae
? Iridistrophia sp.
? Iridistrophia sp. Havlicek 1965
 Strophomenida - Leptostrophiidae
"Brachyprion" mirabilis
 Strophomenida - Rafinesquinidae
Leptaena "sp. A Johnson"
 Strophomenida - Chonetidae
"Chonetes" sp.
"Chonetes" sp. Fischer de Waldheim 1830
Conodonta
 Prioniodontida - Icriodontidae
Pedavis pesavis
 Ozarkodinida -
Ozarkodina optimus, Ozarkodina excavatus