UALVP locality 526, Watino: Early/Lower Turonian, Canada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri
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Leucichthyops sp.
Cockerell 1919
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Actinopteri
- Elopiformes
- Osmeroididae
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Osmeroides cf. delicatus
(Cockerell 1919)
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Actinopteri
- Ichthyodectiformes
- Saurodontidae
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cf. Gillicus sp.
Hay 1898
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Actinopteri
- Ichthyodectiformes
- Ichthyodectidae
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Ichthyodectes ctenodon
Cope 1870
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cf. Xiphactinus sp.
Leidy 1870
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see common names |
Geography
Country: | Canada | State/province: | Alberta |
Coordinates: | 55.7° North, 117.6° West (view map) | ||
Paleocoordinates: | 59.5° North, 73.8° West | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | small collection |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Turonian | 10 m.y. bin: | Cretaceous 6 |
Key time interval: | Early/Lower Turonian | ||
Age range of interval: | 93.90000 - 89.80000 m.y. ago |
Stratigraphy
Geological group: | Smoky | Formation: | Kaskapau | Member: | Vimy |
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: At Watino, Cretaceous sandstone is exposed at river level and the bone bed material is known only from loose blocks in heavily slumped debris. The nearest well-exposed section is at Hunting Creek, located 8 km NNE of Watino, where the upper part of the Dunvegan Formation and lower part of the overlying Kaskapau Formation are exposed. Using sea-level as a datum, the top of the Dunvegan Formation can be traced southward from Erin Lodge on the Peace River, to Hunting Creek near the Smoky River, and then projected south to Watino where the Dunvegan-Kaskapau contact is predicted to lie about 70 m above the level of the Smoky River. Therefore, rocks exposed near water level in the vicinity of Watino are probably part of the Dunvegan Formation, while those above, including the sediments with the fossil material, are part of the Kaskapau Formation. |
Lithology and environment
Primary lithology: | phosphatic poorly lithified sandstone |
Includes fossils? | Y |
Lithology description: On this basis, it is concluded that the Hunting Creek phosphatic sandstone and the bone-bearing sandstone recovered from slumped debris at Watino are the same bed. Correlation of the phosphatic sandstone bed from Howard Creek to wells to the south and west suggest that the bed marks the top of Kaskapau unit II (Varban & Plint 2005). This bone bed is interpreted as a winnowed lag deposit and suggests a period of increased wave energy at the sea floor, an interpretation supported by the presence of forced-regressive shoreface sandstones at the top of unit II in the British Columbia Foothills. At Hunting Creek, the phosphatic sandstone, which is highly lenticular, forms wave ripples, hummocky cross-stratification and gutter casts, suggestive of at least intermittent storm wave action. | |
Environment: | transition zone/lower shoreface |
Taphonomy
Modes of preservation: | body |
Degree of concentration: | -lag |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Collection methods and comments
Collection excludes: | all macrofossils,all microfossils |
Collection methods: | chemical,mechanical,acetic |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Repository: Laboratory for Vertebrate Paleontology, University of Alberta, Edmonton, Alberta, Canada (UALVP) |
Metadata
Database number: | 221341 | ||
Authorizer: | M. Clapham | Enterer: | J. Mordaunt |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2021-07-26 15:02:34 | Last modified: | 2022-10-27 09:55:50 |
Access level: | the public | Released: | 2021-07-26 15:02:34 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
77471. | M. V. H. Wilson and Y. Chalifa. 1989. Fossil marine actinopterygian fishes from the Kaskapau Formation (Upper Cretaceous: Turonian) near Watino, Alberta. Canadian Journal of Earth Sciences 26:2604-2620 [M. Clapham/J. Mordaunt] |