Where: Slope County, North Dakota (46.5° N, 104.0° W: paleocoordinates 52.9° N, 77.0° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)
• datum -8.41, K-T section 9144
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; silty mudstone
Size classes: macrofossils, mesofossils
Primary reference: D. A. Pearson, T. Schaefer, K. R. Johnson, D. J. Nichols, and J. P. Hunter. 2002. Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota. In J. H. Hartman, J. R. Johnson, and D. J. Nichols (eds.), The Hell Creek Formation and the Cretaceous-Tertiary Boundary in the Northern Great Plains: An Integrated Continental Record of the End of the Cretaceous, Geological Society of America Special Paper 361:145-167 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 45313: authorized by Matthew Carrano, entered by Matthew Carrano on 19.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Aves | |
Hesperornithiformes indet. Fürbringer 1888 bird | |
Reptilia | |
Brachychampsa montana Gilmore 1911 crocodilian | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Trionychidae indet. Gray 1825 softshell turtle | |
Adocus sp. Cope 1868 turtle | |
Basilemys sinuosa Riggs 1906 turtle | |
Compsemys victa Leidy 1856 turtle | |
Baenidae indet. Cope 1882 turtle
Plesiobaena antiqua Lambe 1902 turtle | |
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus, Melvius thomasi
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
Melvius thomasi Bryant 1987 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar |