GSC loc. C-87138 - Graham Island: Late/Upper Toarcian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
- Nautilida
- Cenoceratidae
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Cenoceras cf. intermedius
(Sowerby 1816)
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recombined as Cenoceras intermedium | |||||||
Cephalopoda
- Ammonitida
- Hildoceratidae
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Grammoceras sp.
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Podagrosites latescens
(Simpson 1843)
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recombined as Pseudogrammoceras latescens | |||||||
Cephalopoda
- Ammonitida
- Phymatoceratidae
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Phymatoceras cf. crassicosta
Merla 1932
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recombined as Denckmannia crassicosta | |||||||
see common names |
Geography
Country: | Canada | State/province: | British Columbia |
Coordinates: | 53.4° North, 132.3° West (view map) | ||
Paleocoordinates: | 4.5° North, 126.4° West | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | small collection |
Time
Period: | Jurassic | Epoch: | Early/Lower Jurassic |
Stage: | Toarcian | 10 m.y. bin: | Jurassic 3 |
Key time interval: | Late/Upper Toarcian | ||
Age range of interval: | 180.10000 - 175.60000 m.y. ago |
Stratigraphy
Geological group: | Maude | Formation: | Whiteaves | ||
Local section: | Section 7 - Graham Island | Local bed: | 48.00-54.00 m | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Hillebrandti Zone; Meters indicate distance from base of section |
Lithology and environment
Primary lithology: | concretionary lithified calcareous siltstone |
Environment: | marine indet. |
Taphonomy
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | survey of museum collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | GSC |
Metadata
Database number: | 56405 | ||
Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
Modifier: | S. Nurnberg | Research group: | marine invertebrate |
Created: | 2005-11-18 01:01:06 | Last modified: | 2006-04-04 07:40:13 |
Access level: | the public | Released: | 2005-11-18 01:01:06 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
15025. | G. K. Jakobs. 1997. Toarcian (Early Jurassic) ammonoids from western North America. Geological Survey of Canada, Bulletin 428:137pp. [M. Aberhan/S. Nurnberg/S. Nurnberg] |