Loc. 33, Medicine Lodge Coulee [Eastend Fm]: Late/Upper Maastrichtian, Canada
collected by Russell & Landes 1934-1936
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Myalinida
- Inoceramidae
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Inoceramus sp.
Sowerby 1814
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Inoceramus fibrosus
(Meek and Hayden 1857)
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Bivalvia
- Ostreida
- Pteriidae
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Pteria nebrascensis
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Pteria linguiformis
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Bivalvia
- Pectinida
- Anomiidae
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Anomia sp.
Linnaeus 1758
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Bivalvia
- Pholadida
- Corbulidae
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Corbula sp.
Bruguière 1789
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Bivalvia
- Cardiida
- Cardiidae
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Protocardia borealis
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Protocardia subquadrata
(Evans and Shumard 1857)
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Bivalvia
- Cardiida
- Tancrediidae
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Tancredia americana
(Meek and Hayden 1857)
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SUBSPECIES: T. americana cupressensis | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
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Tellina cupressensis
Russell and Landes 1937
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Bivalvia
- Cardiida
- Mactridae
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Mactra sp.
Linnaeus 1767
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Mactra warrenana
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Bivalvia
- Hiatellida
- Hiatellidae
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Panope mclearni
Warren 1934
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Bivalvia
- Thraciida
- Thraciidae
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? Thracia sp.
Blainville 1824
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Bivalvia
- Pholadomyida
- Pholadomyidae
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Pholadomya cupressensis
Russell and Landes 1937
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia mcconnelli
Russell and Landes 1937
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Bivalvia
- Nuculida
- Nuculidae
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Nucula cancellata
Meek and Hayden 1857
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Nucula planimarginata
Meek and Hayden 1857
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Cephalopoda
- Ammonitida
- Scaphitidae
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Discoscaphites abyssinus
(Morton 1841)
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synonym of Hoploscaphites nicolletii | ||||||||||
Ponteixites gracilis
Warren 1934
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Acanthoscaphites sp.
Nowak 1911
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Gastropoda
- Naticidae
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Polinices sp.
Monfort 1810
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see common names |
Geography
Country: | Canada | State/province: | Alberta |
Coordinates: | 49.6° North, 110.3° West (view map) | ||
Paleocoordinates: | 56.9° North, 82.7° West | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | local area |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Late/Upper Maastrichtian | Ammonoid zone: | Hoploscaphites nicolletii |
Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
Formation: | Eastend | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Eastend Formation, which overlies the Late Campanian Bearpaw [Shale] Formation, and is overlain by the Whitemud Fm (Early Maastrichtian). AGE: Maastrichtian on the basis of ammonite (and other groups) biostratigraphy; Inoceramus fibrosus biozone. Early Maastrichtian according to Dawson et el. - Geological Atlas of the Western Canada Sedimentary Basin; Late Maastrichtian; Hoploscaphites nicolletii zone. STRATIGRAPHIC POSITION: From unknown position within formation. |
Lithology and environment
Primary lithology: | poorly lithified "siliciclastic" |
Includes fossils? | Y |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Not stated in text, but certainly siliciclastic, probably shale. LITHIFICATION: Poorly-lithified. | |
Environment: | offshore |
Geology comments: ENVIRONMENT: Offshore siliciclastic marine setting. |
Taphonomy
Modes of preservation: | body,cast,mold/impression,original calcite |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | medium |
Collection methods and comments
Collection methods: | surface (in situ),field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | GSC | ||
Collectors: | Russell & Landes | Collection dates: | 1934-1936 |
Collection method comments: COLLECTOR: L.S. Russell and R. W. Landes. REPOSITORY: Geological Survey of Canada (GSC) | |||
Taxonomic list comments:COVERAGE: Exhaustive for bivalvia, gastropoda, scaphopoda, and cephalopoda. |
Metadata
Database number: | 82643 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2008-07-30 17:53:11 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2008-07-30 17:53:11 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
27815. | L. S. Russell and R. W. Landes. 1937. Geology of the Southern Alberta Plains. Part II. Paleontology of the marine formations of the Montana Group. Geological Survey of Canada Memoir 221 [A. Hendy/A. Hendy/P. Wagner] |