Black Bear Ridge (CM99BBR-19): 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 (Pacimonotis) subcircularis
(Gabb 1864)
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| recombined as Monotis (Entomonotis) subcircularis | |||||||
| see common names | |||||||
Geography
| Country: | Canada | State/province: | British Columbia |
| Coordinates: | 56.1° North, 123.0° West (view map) | ||
| Paleocoordinates: | 35.2° North, 54.5° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Sevatian | Ammonoid zone: | Gnomohalorites cordilleranus |
| Age range of interval: | 213.20000 - 208.50000 m.y. ago |
Stratigraphy
| Formation: | Pardonet | ||||
| Local section: | Black Bear Ridge | Local bed: | CM99BBR-19 | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Upper Norian | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Lithology description: In the study area, the Pardonet Formation is chiefly dark-gray to black carbonaceous limestone with lesser amounts of calcareous siltstone and shale, and rare thin beds of dolostone. | |||
| Environment: | offshore indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 114958 | ||
| Authorizer: | M. Aberhan | Enterer: | D. Wellmanns |
| Modifier: | S. Nurnberg | Research group: | marine invertebrate |
| Created: | 2011-08-26 00:51:04 | Last modified: | 2013-03-19 05:32:14 |
| Access level: | the public | Released: | 2011-08-26 00:51:04 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 37141. | C. A. McRoberts. 2011. Late Triassic Bivalvia (Chiefly Halobiidae and Monotidae) from the Pardonet Formation, Williston Lake Area, Northeastern British Columbia, Canada. Journal of Paleontology 85(4):613-664 [M. Aberhan/S. Nurnberg] |