Where: Niobrara County, Wyoming (43.3° N, 104.4° W: paleocoordinates 49.8° N, 79.1° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Lance Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• lower part of formation
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; sandstone
Size classes: macrofossils, mesofossils
Collected by J. Davis in 1907
Primary reference: J. A. Davis. 1912. The Little Powder River coal field, Campbell County, Wyoming. In M. R. Campbell (ed.), Contributions to Economic Geology (Short Papers and Preliminary Reports). Part II.—Mineral Fuels. 1910. United States Geological Survey Bulletin 471:423-515 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 191271: authorized by Matthew Carrano, entered by Matthew Carrano on 19.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
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