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

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Coal Creek Member (Kishenehn Formation), Lutetian (47.8 - 41.3 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

Size classes: macrofossils, mesofossils

Preservation: adpression

Reposited in the USNM

Primary reference: V. A. Baranov, J. T. Haug, D. E. Greenwalt and R. Harbach. 2021. Diversity of culicomorphan dipterans in the Eocene Kishenehn Konservat-Lagerstätte (Montana, USA) and its palaeoecological implications. Palaeontologia Electronica 25(1:a4):1-30 [M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 224195: authorized by Matthew Clapham, entered by Matthew Clapham on 28.01.2022

Creative Commons license: CC BY (attribution)