Locality 34, unit 3: Richmondian, Canada
collected by R. Thorsteinsson 1950-

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Heliolitida - Halysitidae
Halysites sp. von Waldheim 1813
Anthozoa - Sarcinulida - Syringophyllidae
Calapoecia canadensis Cox 1936
synonym of Calapoecia coxi
Anthozoa - Lichenariida - Lyoporidae
Nyctopora informal sp. A Nicholson 1879
Anthozoa - Stauriida - Streptelasmatidae
Streptelasma informal sp. B cf. breve Hall 1847
Trilobita - Phacopida - Cheiruridae
Ceraurinus daedalus Cox 1933
Ceraurus horridus
Ceraurus sp. Green 1832
Trilobita - Corynexochida - Illaenidae
Bumastus informal sp. C Murchison 1839
Ostracoda
informal Ostracoda indet. Latreille 1802
Ostracoda - Podocopida - Leguminocythereidae
Basslerites sp.
Strophomenata - Strophomenida - Sowerbyellidae
Sowerbyella sp. Jones 1928
Strophomenata - Strophomenida - Furcitellidae
Oepikina sp. (Salmon 1942)
original and current combination Opikina
Strophomenata - Strophomenida - Strophomenidae
Strophomena fluctuosa Billings 1860
recombined as Nasutimena fluctuosa
Rhynchonellata - Rhynchonellida - Rhynchotrematidae
Rhynchotrema sp. Hall 1860
Rhynchotrema cf. capax (Conrad 1842)
recombined as Hiscobeccus capax
Rhynchonellata - Orthida - Dalmanellidae
? Resserella sp. Bancroft 1928
Rhynchonellata - Orthida - Plaesiomyidae
Dinorthis sp. Hall and Clarke 1892
Rhynchonellata - Orthida - Glyptorthidae
Glyptorthis insculpta (Hall 1847)
Stenolaemata - Phylloporinidae
Chasmatopora informal sp. A Eichwald 1860
Chasmatopora informal sp. B Eichwald 1860
Stenolaemata - Trepostomata - Trematoporidae
Batostoma sp. Ulrich 1882
Gastropoda - Murchisoniina - Eotomariidae
? Liospira sp. Ulrich and Scofield 1897
see common names

Geography
Country:Canada State/province:Northwest Territories County:Cornwallis Island
Coordinates: 75.0° North, 95.9° West (view map)
Paleocoordinates:5.6° North, 39.5° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 5
Key time interval:Richmondian Conodont zone: Aphelognathus grandis
Age range of interval:449.50000 - 443.70000 m.y. ago
Stratigraphy
Geological group:Cornwallis Formation:Irene Bay
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:gray,green lithified lime mudstone
Secondary lithology: poorly lithified "shale"
Includes fossils?Y
Lithology description: light grey to olive-gray, weathering similar, thin-bedded, flaggy, hard, dense, sublithographic limestone; bedding planes irregular and composed of shale partings up to 0.25 inches thick
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),mechanical,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:GSC
Collectors:R. Thorsteinsson Collection dates:1950-53
Taxonomic list comments:Cephalopods identified by Walter C. Sweet and A. K. Miller, bryozoans by T. E. Bolton, corals, brachiopods, and arthropods by A. E. Wilson, graptolites and chordates by R. Thorsteinsson
Metadata
Database number:188770
Authorizer:M. Hopkins Enterer:M. Hopkins
Modifier:P. Wagner Research group:marine invertebrate
Created:2017-09-18 13:26:39 Last modified:2018-04-12 23:30:06
Access level:the public Released:2017-09-18 13:26:39
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]