Where: Alberta, Canada (49.6° N, 110.3° W: paleocoordinates 56.9° N, 82.7° W)
• coordinate stated in text
• local area-level geographic resolution
When: Hoploscaphites nicolletii ammonoid zone, Eastend Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• 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.
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified siliciclastic sediments
Size class: macrofossils
Preservation: cast, mold/impression, original calcite
Collected by Russell & Landes in 1934-1936; reposited in the GSC
Collection methods: surface (in situ),
• COLLECTOR: L.S. Russell and R. W. Landes. REPOSITORY: Geological Survey of Canada (GSC)
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 82643: authorized by Austin Hendy, entered by Austin Hendy on 30.07.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Yoldia mcconnelli Russell and Landes 1937 clam | |
Nucula cancellata Meek and Hayden 1857 nut clam
Nucula planimarginata Meek and Hayden 1857 nut clam | |
Pteria nebrascensis pearl oyster
Pteria linguiformis pearl oyster | |
Anomia sp. Linnaeus 1758 jingle | |
Inoceramus sp. Sowerby 1814 clam
Inoceramus fibrosus Meek and Hayden 1857 clam | |
Panope mclearni Warren 1934 clam | |
Pholadomya cupressensis Russell and Landes 1937 clam | |
? Thracia sp. Blainville 1824 clam | |
Protocardia borealis cockle
Protocardia subquadrata Evans and Shumard 1857 cockle | |
Tellina cupressensis Russell and Landes 1937 tellin clam | |
| |
Mactra sp. Linnaeus 1767 clam
Mactra warrenana clam | |
Corbula sp. Bruguière 1789 clam | |
Gastropoda | |
Polinices sp. Monfort 1810 moon snail | |
Cephalopoda | |
Ponteixites gracilis Warren 1934 ammonite
Acanthoscaphites sp. Nowak 1911 ammonite
"Discoscaphites abyssinus" = Hoploscaphites nicolletii Morton 1842 ammonite |