Where: Dunn County, North Dakota (47.0° N, 102.8° W: paleocoordinates 51.0° N, 84.5° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Camels Butte Member (Golden Valley Formation), Wasatchian (55.8 - 50.3 Ma)
• bed-level stratigraphic resolution
Environment/lithology: "channel"; sandstone and conglomeratic shale
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 10980: authorized by Hallie Sims, entered by Summer Ostrowski on 08.07.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
Polypodiopsida | |
Salvinia preauriculata Berry 1925 watermoss | |
Angiospermae | |
Averrhoites affinis Newberry 1868 wood sorrel | |
Lycopodiopsida | |
Isoetites horridus Dawson 1883 clubmoss |