S394: Middle Campanian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Polypodiopsida
- Salviniales
- Azollaceae
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Azollopsis intermedia n. sp. megaspore
Sweet and Hills 1974
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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: | 58.8° North, 77.9° West | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Middle Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Geological group: | Belly River | Formation: | Foremost | ||
| Local section: | 2466-2470' | Local bed: | 2466-2470' | ||
| Local order: | top to bottom | ||||
| Stratigraphy comments: Foremost Formation is likely middle Campanian in age, see Fowler et al. 2017 supplementary data for more details on age constraints of the Foremost 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 intermedia: AS-S394-C-3-1, GSC 30854, holotype; AS-S394-C-3-2, GSC 30856; AS-S394-S-3-8, GSC 30858; AS-S394-C-3-3, GSC 30860; AS-S394-S-0-2, GSC 30867; AS-S394-S-0-3, GSC 30864a. | |
Metadata
| Also known as: | Canadian Pacific Oil and Gas EV Strathmore well, depth 2466-2470 feet | ||
| Database number: | 34289 | ||
| Authorizer: | R. Lupia | Enterer: | B. Wilborn |
| Modifier: | G. Varnham | Research group: | paleobotany |
| Created: | 2003-08-26 10:17:03 | Last modified: | 2022-03-21 06:35:30 |
| Access level: | the public | Released: | 2003-08-26 10:17:03 |
| Creative Commons license: | CC BY | ||
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] |