Locality 4, unit 6: Ashgillian - Wenlock, Canada
collected by R. Thorsteinsson 1950-

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Stromatoporoidea - Stromatoporida - Stromatoporidae
? Stromatopora sp. Goldfuss 1826
Stromatoporoidea - Clathrodictyida - Clathrodictyidae
Clathrodictyon sp. Nicholson and Murie 1878
Anthozoa - Stauriida - Amplexidae
Amplexus propinquis
Anthozoa - Cystiphyllida - Palaeocyclidae
Rhabdocyclus sp. Lang and Smith 1939
Anthozoa - Cystiphyllida - Tryplasmatidae
Porpites informal sp. A aff. propitus Schlotheim 1820
Porpites informal sp. B Schlotheim 1820
Anthozoa - Heliolitida - Halysitidae
Halysites sp. von Waldheim 1813
Halysites catenulatus (Linnaeus 1767)
recombined as Halysites catenularius
Anthozoa - Favositida - Favositidae
Favosites informal sp. B aff. pyriformis Lamarck 1816
Favosites favosus Goldfuss 1826
Anthozoa - Favositida - Micheliniidae
? Michelinia sp. de Koninck 1841
see common names

Geography
Country:Canada State/province:Northwest Territories County:Cornwallis Island
Coordinates: 74.7° North, 94.8° West (view map)
Paleocoordinates:6.5° North, 37.4° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Key time interval:Ashgillian - Wenlock
Age range of interval:449.50000 - 427.40000 m.y. ago
Stratigraphy
Formation:Allen Bay
Lithology and environment
Primary lithology:gray lithified carbonaceous dolomite
Lithology description: Dolomite; biostromal, brownish grey, stained brownish black by bituminous residue, weathering to greyish yellow, thin-bedded, slabby, hard, vuggy, finely crystalline; petroliferous odour when struck or broken
Environment:marine indet.
Taphonomy
Modes of preservation:cast,replaced with silica
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),chemical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Collectors:R. Thorsteinsson Collection dates:1950-53
Taxonomic list comments:Identified by A. E. Wilson
Metadata
Database number:188780
Authorizer:M. Hopkins Enterer:M. Hopkins
Research group:marine invertebrate
Created:2017-09-18 16:45:44 Last modified:2017-09-18 16:45:44
Access level:the public Released:2017-09-18 16:45:44
Creative Commons license:CC BY
Reference information

Primary reference:

63386. R. Thorsteinsson. 1958. Cornwallis and Little Cornwallis Islands, District of Franklin, Northwest Territories. Geological Survey of Canada Memoirs 294:1-134 [M. Hopkins/M. Hopkins/M. Hopkins]