Where: Nunavut, Canada (76.0° N, 98.0° W: paleocoordinates 2.1° S, 26.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Stuart Bay Formation, 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: open shallow subtidal; limestone
•SEP: this is a tough one. The unit is definitely clastic dominated and contains only minor carbonate away from the reefs. This environment is probably above normal wave base, relatively near a sed source but sufficiently far out in the cratonic basin to be relatively starved of clastic sediments, which are probably transported into basin primarily during storms. it is also likely to be part of the TST;
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 26648: authorized by Michael Foote, entered by Michael Foote on 21.10.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
| Rhynchonellata | |
|
Schizophoria sp. King 1850 | |
|
Atrypa sp. Dalman 1828 | |
Spirigerina supramarginalis, "Ogilviella cf. rotunda" = Rhynchogilviella rotunda
Spirigerina supramarginalis Khalfin 1948
"Ogilviella cf. rotunda" = Rhynchogilviella rotunda Lenz 1968 | |
"Dubaria cf. thetis" = Septatrypa
"Dubaria cf. thetis" = Septatrypa | |
|
Machaeraria sp. Cooper 1955 | |
| Strophomenata | |
|
"Brachyprion" mirabilis Johnson 1970 | |