Where: Slope County, North Dakota (46.4° N, 104.0° W: paleocoordinates 52.6° N, 77.3° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Hell Creek Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• datum -31.43, K-T section 9735
• bed-level stratigraphic resolution
Environment/lithology: "channel"; sandstone
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 45130: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish | |
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar | |
Mammalia | |
Mammalia indet. mammal | |
? Didelphodon sp. Marsh 1889 metatherian | |
Meniscoessus robustus Marsh 1889 multituberculate | |
Reptilia | |
Thoracosaurus neocesariensis De Kay 1842 crocodilian | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Richardoestesia isosceles Sankey 2001 maniraptoran | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Champsosaurus sp. Cope 1876 choristodere | |
Helopanoplia distincta Hay 1908 turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Chelydridae indet. Swainson 1839 turtle | |
Amphibia | |
Caudata indet. salamander | |
Scapherpeton tectum Cope 1876 salamander |