S30: Early Maastrichtian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polypodiopsida
- Salviniales
- Azollaceae
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Azollopsis tomentosa megaspore
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massulae, microsporangia | ||||||||||
see common names |
Geography
Country: | Canada | State/province: | Alberta |
Coordinates: | 51.1° North, 113.3° West (view map) | ||
Paleocoordinates: | 63.5° North, 69.5° West (Wright 2013) | ||
Basis of coordinate: | stated in text |
Time
Period: | Cretaceous | Epoch: | Late Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Early Maastrichtian | ||
Age range of interval: | 72.1 - 66 m.y. ago |
Stratigraphy
Geological group: | Edmonton | Formation: | Horseshoe Canyon | ||
Local section: | CPOG Strathmore EV Well | Local bed: | 757.5-759' | ||
Local order: | top to bottom | ||||
Stratigraphy comments: CPOG Strathmore EV well (sample S30), 757.5-790.0 ft, Horseshoe Canyon Formation. |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | original sporopollenin |
Size of fossils: | microfossils |
Collection methods and comments
Collection methods: | core,chemical,sieve,field collection |
Minimum sieve size: | 0.037 |
Reason for describing collection: | taxonomic analysis |
Collection method comments: The specimens figured in the paper have slide and collection number information. They also have more detailed locality information. Azollopsis tomentosa: AS-S30-S-0-1, GSC 30850a; AS-S30-S-0-1, GSC 30850b. |
Metadata
Also known as: | Canadian Pacific Oil and Gas EV Strathmore well, depth 757.5-759 feet | ||
Database number: | 34166 | ||
Authorizer: | R. Lupia | Enterer: | B. Wilborn |
Modifier: | G. Varnham | Research group: | paleobotany |
Created: | 2003-08-20 16:22:58 | Last modified: | 2025-02-22 15:12:02 |
Access level: | the public | Released: | 2003-08-20 16:22:58 |
Creative Commons license: | CC0 |
Reference information
Primary reference:
8958. | A.R. Sweet and L.V. Hills. 1974. A detailed study of the genus Azollopsis. Canadian Journal of Botany 52:1625-1642 [R. Lupia/B. Wilborn/B. Wilborn] |