Locality 16: Richmondian, Canada
collected by R. Thorsteinsson 1950-
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira sp.
Whitfield 1886
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Gastropoda
- Bellerophontida
- Bucaniidae
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Bucania sp.
Hall 1847
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena sp.
Rafinesque and De Blainville 1824
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Strophomenata
- Strophomenida
- Furcitellidae
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Oepikina cf. platys
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| original and current combination Opikina | ||||||||||
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Oepikina sp.
(Salmon 1942)
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| original and current combination Opikina | ||||||||||
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Trigrammaria sp.
Wilson 1945
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina sp.
Hall and Clarke 1892
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Rafinesquina semicircularis
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| subspecies minor? | ||||||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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Plectorthis informal n. sp cf. plicatella laurentia
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Plectorthis cf. plicatella
(Hall 1847)
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| subspecies trentonensis | ||||||||||
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Stenolaemata
- Cryptostomata
- Rhinidictyidae
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Rhinidictya sp.
Ulrich 1882
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Trilobita
- Proetida
- Bathyuridae
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Bathyurus informal sp. A
Billings 1859
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Bathyurus informal sp. B
Billings 1859
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| see common names | ||||||||||
Geography
| Country: | Canada | State/province: | Northwest Territories | County: | Cornwallis Island |
| Coordinates: | 75.4° North, 95.5° West (view map) | ||||
| Paleocoordinates: | 4.1° North, 37.6° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| Key time interval: | Richmondian | Conodont zone: | Aphelognathus grandis |
| Age range of interval: | 449.80000 - 446.00000 m.y. ago |
Stratigraphy
| Geological group: | Cornwallis | Formation: | Irene Bay |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Lithology description: middle of formation: limestone, argillaceous limestone, and dolomitic limestone, alternating with yellowish gray massive dolomite | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | R. Thorsteinsson | Collection dates: | 1950-53 |
| Taxonomic list comments:Identified by A. E. Wilson and T. E. Bolton | |||
Metadata
| Database number: | 188772 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2017-09-18 13:39:52 | Last modified: | 2018-04-12 23:31:22 |
| Access level: | the public | Released: | 2017-09-18 13:39:52 |
| 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] |