Locality 38, unit 3: Ludlow, Canada
collected by R. Thorsteinsson 1950-
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Orthotetida
- Chilidiopsidae
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? Fardenia informal sp. A
Lamont 1935
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? Fardenia informal sp. B
Lamont 1935
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella arctica
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Rhynchonellata
- Atrypida
- Atrypidae
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? Atrypa sp.
Dalman 1828
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Stenolaemata
- Trepostomida
- Monticuliporidae
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Mesotrypa cf. suprasilurica
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Mesotrypa sp.
Ulrich 1893
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Michelinoceras sp.
Foerste 1932
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Northwest Territories | County: | Cornwallis Island |
| Coordinates: | 74.8° North, 93.4° West (view map) | ||||
| Paleocoordinates: | 2.0° North, 31.9° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Silurian | Epoch: | Ludlow |
| 10 m.y. bin: | Silurian 2 | ||
| Key time interval: | Ludlow | ||
| Age range of interval: | 427.40000 - 423.00000 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | gray lithified lime mudstone |
| Includes fossils? | Y |
| Lithology description: Limestone; light grey to medium grey weathering similar, very thin-bedded, flaggy, hard, dense, sublithographic to very finely crystalline | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection | ||
| Reason for describing collection: | biostratigraphic analysis | ||
| Museum repositories: | GSC | ||
| Collectors: | R. Thorsteinsson | Collection dates: | 1950-53 |
Metadata
| Database number: | 188897 | ||
| Authorizer: | M. Hopkins | Enterer: | M. Hopkins | Research group: | marine invertebrate |
| Created: | 2017-09-20 09:05:51 | Last modified: | 2017-09-20 09:05:51 |
| Access level: | the public | Released: | 2017-09-20 09:05:51 |
| 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] |