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Spring site, Middle Fork Flathead River (Kishenehn) (Eocene of the United States)

Where: Montana (48.4° N, 113.7° W: paleocoordinates 51.9° N, 100.4° W)

• coordinate stated in text

When: Coal Creek Member (Kishenehn Formation), Lutetian (48.6 - 40.4 Ma)

• Middle sequence of the Coal Creek member of the Kishenehn Formation, which has been estimated to be 46.2 +/- 0.4 myo (Lutetian) by 40Ar/39Ar analysis and 43.5 +/- 4.9 myo by fission-track analysis

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, carbonaceous shale

• Paper/oil shale

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by Dale Greenwalt in 2009,2010

Collection methods: mechanical,

Primary reference: J. T. Huber and D. Greenwalt. 2011. Compression fossil Mymaridae (Hymenoptera) from Kishenehn oil shales, with description of two new genera and review of Tertiary amber genera. ZooKeys 130:473-494 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117614: authorized by Matthew Clapham, entered by Matthew Clapham on 25.09.2011, edited by Jered Karr

Creative Commons license: CC BY (attribution)