Also known as F9
Where: Harding County, South Dakota (45.3° N, 103.7° W: paleocoordinates 51.5° N, 77.6° 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; lithology not reported
Size class: macrofossils
Collected by D. Winchester, C. Hares, E. Lloyd & E. Parks in 1911–1912
Collection methods: surface (float),
Primary reference: D. E. Winchester, C. J. Hares, E. R. Lloyd and E. M. Parks. 1916. The lignite field of northwestern South Dakota. United States Geological Survey Bulletin 627:1-169 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 150894: authorized by Matthew Carrano, entered by Matthew Carrano on 17.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Champsosaurus sp. Cope 1876 choristodere | |
Hadrosauridae indet. Cope 1869 hadrosaurid | |
Aspideretes sp. Hay 1904 softshell turtle |