Where: Morton County, North Dakota (48.0° N, 102.1° W: paleocoordinates 51.8° N, 83.4° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Camels Butte Member (Golden Valley Formation), Wasatchian (55.8 - 50.3 Ma)

• Lignite is inferred to record an ancient local swamp that extended on either side of the channel. The flora with Eocene indicator plants but also with a high percentage of those found in Paleocene strat was obtained from the interchannel deposits of the Camels Butte member immediately about its lower boundary in one of the western pits of the Hebron Brick Company

• bed-level stratigraphic resolution

Environment/lithology: "channel"; yellow claystone

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: quarrying,

Primary reference: L. J. Hickey. 1977. Stratigraphy and paleobotany of the Golden Valley Formation (Early Tertiary) of western North Dakota. The Geological Society of America Memoir 150:1-183 [H. Sims/S. Ostrowski/J. Cassara]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 10807: authorized by Hallie Sims, entered by Summer Ostrowski on 25.06.2001

Creative Commons license: CC BY (attribution)