Milk River #4 (GSC 1271) (Cretaceous of Canada)

Where: Alberta, Canada (49.2° N, 111.9° W: paleocoordinates 54.5° N, 73.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Milk River Formation, Late/Upper Santonian (85.8 - 83.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone

• In outcrop the Milk River Formation comprises three members: the Telegraph Creek, Virgelle, and Deadhorse Coulee (lower Eagle Formation equivalent). These members form a regressive succession from offshore marine to non marine coastal plain deposits.

•http://www.searchanddiscovery.net/documents/2006/06070rm_section%20_abs/abstracts/oconnell02.htm

• "The strata consist generally of alternating series of sandstones and shales with all gradients between the two....contains clay ironstone concretions, large plant stems and tree trunk imprints and casts, ripple markings, worm borings... carbonaceous fragments and coal seams..."

Size class: macrofossils

Preservation: mold/impression, adpression, original carbon

Reposited in the GSC

Collection methods: bulk,

• For futher modifications, refer to D.R. Crabtree. 1987. Angiosperms of the Northern Rocky Mountain: Albian to Campanian (Cretaceous) megafossil floras. Annals of the Missouri Botanical Garden 74:707-747

Primary reference: W. A. Bell. 1962. Upper Cretaceous floras of the Dunvegan, Bad Heart, and Milk River Formations of Western Canada. Geological Survey of Canada 94:1-76 [B. Tiffney/J. Fosdick/J. Fosdick]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 35085: authorized by Bruce Tiffney, entered by Julia Fosdick on 02.11.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Angiospermae
 Fabales - Fabaceae
Cassia alaskana
 Laurales - Lauraceae
Laurophyllum sp.
Laurophyllum sp. Göppert 1853 laurel
Pinopsida
 Pinales - Taxaceae
Protophyllocladus polymorpha, Geinitzia formosa
Geinitzia formosa Heer 1871 yew