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