Quadrithyris Zone Brachiopods, Prince of Wales Is., GSC loc. C8214: Lochkovian, Canada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Atrypida - Atrypidae
Atrypa sp. Dalman 1828
Rhynchonellata - Pentamerida - Gypidulidae
Gypidula thorsteinssoni n. sp.
Rhynchonellata - Orthida - Dalmanellidae
? Protocortezorthis cf. fornicatimcurvata
Rhynchonellata - Rhynchonellida - Machaerariidae
Machaeraria sp. Cooper 1955
Strophomenata - Orthotetida - Chilidiopsidae
? Iridistrophia sp. Havlicek 1965
see common names

Geography
Country:Canada State/province:Nunavut
Coordinates: 73.5° North, 100.5° West (view map)
Paleocoordinates:2.1° South, 30.3° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Devonian Epoch:Early/Lower Devonian
Stage:Lochkovian 10 m.y. bin:Devonian 1
*Local age/stage:Late/Upper Lochkovian
Key time interval:Lochkovian
Age range of interval:419.20000 - 410.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: Age of faunas discussed at length in this paper. Author concludes they are correlative with Quadrithyris Zone of Nevada, and of Late Lochkovian age.
Lithology and environment
Primary lithology:gray argillaceous "limestone"
Lithology description: "The collections from Prince of Wales Island were taken from a slightly argillaceous grey limestone..."
Environment:deep subtidal shelf Tectonic setting:passive margin
Geology comments: "...well-preserved articulated specimens, suggesting that [shells] have been moved little, if any, from their habitat while living."
SEP environmental call based on given info and regional context
Taphonomy
Collection methods and comments
Collection excludes:some macrofossils
Reason for describing collection:biostratigraphic analysis
Museum repositories:GSC
Taxonomic list comments:Paper is on brachiopods. Some other faunal elements are mentioned for some collections, especially when biostratigraphically relevant.
Metadata
Database number:26641
Authorizer:M. Foote Enterer:M. Foote
Modifier:S. Peters Research group:marine invertebrate
Created:2002-10-21 11:56:25 Last modified:2003-05-14 13:44:31
Access level:the public Released:2002-10-21 11:56:25
Creative Commons license:CC BY
Reference information

Primary reference:
7311. 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]