Canning River (USGS Mesozoic Loc. 21028): Late Oxfordian - Early Kimmeridgian, Alaska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Cardiida
- Tancrediidae
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Tancredia sp.
Lycett 1850
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Bivalvia
- Pectinida
- Entoliidae
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Entolium sp.
(Meek 1865)
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Bivalvia
- Pectinida
- Limidae
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Lima sp.
Bruguière 1797
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Bivalvia
- Pectinida
- Buchiidae
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Aucella spitiensis
Holdhaus 1913
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Aucella concentrica
White 1888
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Cephalopoda
- Goniatitida
- Prionoceratidae
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Amoeboceras (Prionodoceras) sp.
Hyatt 1900
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sgn. (Prionodoceras?) spp. juv. | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Alaska |
Coordinates: | 69.5° North, 146.3° West (view map) | ||
Paleocoordinates: | 73.4° North, 52.1° West | ||
Geographic resolution: | small collection |
Time
Period: | Jurassic | Epoch: | Late Jurassic |
Stage: | Oxfordian - Kimmeridgian | 10 m.y. bin: | Jurassic 5 |
*Period: | Late/Upper Jurassic | *Epoch: | Malm |
*International age/stage: | Late/Upper Oxfordian - Early/Lower Kimmeridgian | ||
Key time interval: | Late Oxfordian - Early Kimmeridgian | ||
Age range of interval: | 157.9 - 152.2 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Kingak Shale | ||||
Local order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Near top of Kingak Shale. |
Lithology and environment
Primary lithology: | black lithified "shale" | ||
Secondary lithology: | ironstone | ||
Lithology description: black shale containing ironstone interbeds. | |||
Environment: | marine indet. | Tectonic setting: | foreland basin |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | biostratigraphic analysis |
Museum repositories: | USGS |
Metadata
Database number: | 5467 | ||
Authorizer: | J. Alroy | Enterer: | M. Sommers | Research group: | marine invertebrate |
Created: | 1999-10-04 13:35:10 | Last modified: | 2001-08-30 17:52:51 |
Access level: | the public | Released: | 2000-11-20 13:53:26 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
313. | R. W. Imlay. 1955. Characteristic Jurassic Mollusks from northern Alaska. United States Geological Survey Professional Paper 274-D:69-96 [J. Alroy/M. Sommers] |