Drake Bay Section, Prince of Wales Island, Unit 4 (Devonian to of Canada)

Where: Nunavut, Canada (73.5° N, 100.6° W: paleocoordinates 5.3° S, 24.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Eifelian to Eifelian (393.3 - 382.7 Ma)

• Unnamed formation, "probably partly correlative witht he Blue Fiord Formation" (which he assigns an age of Eifelian through Givetian). "Unit n" [from bottom] is my terminology, not Ormiston's. Unit is 14.2 feet thick.

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; argillaceous limestone and shale

• Reef development not observed in this section, but stromatoporoids occur at several horizons.

•SEP environmental call based on given info and regional context

• For section: "Thin-bedded, tan weathering limestones, argillaceous limestones, and shales are the predominant rock types." This unit: "argillaceous limestone, dark brown, finely xtalline, thin-bedded...laterally grades into shale: brown, fillile, with concretion-like limestone lenses"

Primary reference: A. R. Ormiston. 1967. Lower and Middle Devonian trilobites of the Canadian arctic islands. Geological Survey of Canada Bulletin 153:1-148 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 26579: authorized by Michael Foote, entered by Michael Foote on 18.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Atrypida - Atrypidae
Atrypa sp.
Atrypa sp. Dalman 1828
?
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Trilobita
 Proetida - Proetidae
? Schizoproetoides sp.
? Schizoproetoides sp. Ormiston 1967 trilobite
 Lichida - Lichidae
Lichidae indet.
Lichidae indet. Hawle and Corda 1847 trilobite