Black Bear Ridge, Pardonet Formation, Unit 21, Sample 82BBR30: Sevatian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Monotidae
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Monotis subcircularis
Gabb 1864
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| recombined as Monotis (Entomonotis) subcircularis | |||||||
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Conodonta
- Ozarkodinida
- Gondolellidae
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Epigondolella bidentata
Mosher 1968
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unclassified
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Norigondolella steinbergensis
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | British Columbia |
| Coordinates: | 56.1° North, 123.1° West (view map) | ||
| Paleocoordinates: | 35.2° North, 54.5° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Sevatian | ||
| Age range of interval: | 213.20000 - 208.50000 m.y. ago |
Stratigraphy
| Formation: | Pardonet | Local bed: | 21 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Upper Norian; Sample 82BBR30 from Gibson&Edwards Unit 21, Zones: Bidentata (Conodont), Cordilleranus (Ammonoid) | |||||
Lithology and environment
| Primary lithology: | lithified silty,carbonaceous "limestone" |
| Secondary lithology: | dolomitic lithified calcareous siltstone |
| Lithology description: The Pardonet Formation (140m) consists of carbonaceous silty limestone, calcareous and dolomitic siltstone and shale, and densely packed bioclastic grainstone beds. | |
| Environment: | deep-water indet. |
Taphonomy
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 47400 | ||
| Authorizer: | W. Kiessling | Enterer: | S. Nurnberg |
| Modifier: | S. Nurnberg | Research group: | marine invertebrate |
| Created: | 2005-02-23 14:29:58 | Last modified: | 2005-03-01 16:44:22 |
| Access level: | the public | Released: | 2005-02-23 14:29:58 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 12661. | M. J. Orchard, J. P. Zonneveld, M. J. Johns, C. A. McRoberts, M. R. Sandy, E. T. Tozer, and G. G. Carrelli. 2001. Fossil succession and sequence stratigraphy of the Upper Triassic of Black Bear Ridge, northeast British Columbia, a GSSP prospect for the Carnian-Norian boundary. Albertiana 25:10-22 [W. Kiessling/S. Nurnberg/M. Uhen] |