Where: Alberta, Canada (49.5° N, 112.2° W)

• Paleocoordinates: 56.6° N, 67.7° W (Wright 2013)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Belle Fourche Formation (Colorado Group), Middle Cenomanian to Middle Cenomanian (100.5 - 93.9 Ma)

• Verneuilinoides perplexus Zone (Caldwell et al., 1978); meters indicate depth at which sample was taken

• bed-level stratigraphic resolution

Environment/lithology: deltaic; lithified sandstone

Size class: microfossils

Reposited in the GSC

Collection methods: core, chemical, smear slide,

• foraminiferal analysis utilizing the method of Then and Dougherty (1983) and washed over a 0.065 mm sieve; nannofossils were analyzed using the techniques from Edwards (1963), Stover (1966), Gartner (1968) and Smith (1981); standard acid processing techniques (Barss and Williams, 1973) were used followed by heavy liquid flotation and sieving to concentrate the dinoflagellates in the >0.045 and the 0.020-0.045 mm fractions

Primary reference: J. D. Bloch, C. J. Schröder-Adams, D.A. Leckie, J. Craig, and D.J. McIntyre. 1999. Sedimentology, micropaleontology, geochemistry and hydrocarbon potential of shale from the cretaceous Lower Colorado Group in Western Canada. Geological Survey of Canada, Bulletin 531:1-185 [W. Kiessling/T. Schossleitner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 71255: authorized by Wolfgang Kiessling, entered by Thomas Schossleitner on 23.04.2007

Creative Commons license: CC0 (CC0)