Headwaters of Kandik River - Kingak Shale: Oxfordian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Buchiidae
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Buchia concentrica
(White 1888)
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| see common names | |||||||
Geography
| Country: | Canada | State/province: | Yukon |
| Coordinates: | 65.8° North, 140.4° West (view map) | ||
| Paleocoordinates: | 64.3° North, 69.7° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Late Jurassic |
| Stage: | Oxfordian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Oxfordian | ||
| Age range of interval: | 161.5 - 154.8 m.y. ago |
Stratigraphy
| Formation: | Kingak Shale | ||||
| Local section: | Kandik River | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Collection a composite from the "Kingak Shale" unit of the Kandik River headwaters section. This succession is assigned a Oxfordian age based on macrofossil biostratigraphy (Buchia (Anaucella) concentrica biozone of Jeletzky, 1967), although could potentially fall within the Kimmeridgian-Callovian. | |||||
Lithology and environment
| Primary lithology: | "shale" |
| Secondary lithology: | siltstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Mainly shale and siltstone. | |
| Environment: | deep-water indet. |
| Geology comments: Mainly outer neritic and upper bathyal. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | GSC |
| Collection method comments: Collection is a composite derived from Fig. 2 of Jeletzky (1978), and amalgamated from occurrences of individual taxa on composite columns for individual lithostratigraphic units. Collections presumably are reposited in the Geological Survey of Canada collections. | |
| Taxonomic list comments:Definately not an exhaustive taxonomic list; taxonomic nomenclature appears reliable. | |
Metadata
| Database number: | 55965 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2005-11-09 09:14:26 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2005-11-09 09:14:26 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 15101. | J. A. Jeletzky. 1975. Jurassic and Lower Cretaceous paleogeographgy and depositional tectonics of Porcupine Plateau. adjacent areas of Northern Yukon and those of MacKensie District. Geological Survey of Canada, Paper 74(16):1-52 [A. Miller/A. Hendy] |