Loc. 34, Medicine Lodge Coulee [Eastend Fm]: Early/Lower Maastrichtian, Canada
collected by Russell & Landes 1934-1936

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Ostrea glabra
Bivalvia - Myalinida - Inoceramidae
Inoceramus fibrosus (Meek and Hayden 1857)
Bivalvia - Pectinida - Oxytomidae
Pteria nebrascana (Evans and Shumard 1857)
Bivalvia - Pholadida - Corbulidae
Corbula sp. Bruguière 1789
Corbula sprouli Warren 1934
Bivalvia - Cardiida - Cardiidae
Protocardia subquadrata (Evans and Shumard 1857)
Bivalvia - Cardiida - Tancrediidae
Tancredia americana (Meek and Hayden 1857)
SUBSPECIES: T. americana cupressensis
Bivalvia - Cardiida - Tellinidae
Tellina cupressensis Russell and Landes 1937
Bivalvia - Cardiida - Mactridae
Mactra warrenana
Bivalvia - Nuculanida - Yoldiidae
Yoldia cupressensis Russell and Landes 1937
Bivalvia - Nuculida - Nuculidae
Nucula planimarginata Meek and Hayden 1857
Cephalopoda - Ammonitida - Scaphitidae
Acanthoscaphites sp. Nowak 1911
Acanthoscaphites quadrangularis
see common names

Geography
Country:Canada State/province:Alberta
Coordinates: 49.5° North, 110.3° West (view map)
Paleocoordinates:56.9° North, 82.8° 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:Early/Lower Maastrichtian
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: Early 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. 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:82644
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-07-30 17:53:26 Last modified:2013-11-25 13:37:23
Access level:the public Released:2008-07-30 17:53:26
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]