Where: Slope County, North Dakota (46.5° N, 104.0° W: paleocoordinates 52.7° N, 77.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Hell Creek Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• datum -8.85, K-T section 9612
• 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 45299: authorized by Matthew Carrano, entered by Matthew Carrano on 19.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Multituberculata indet. Cope 1884 multituberculate | |
Reptilia | |
Trionychidae indet. Gray 1825 softshell turtle | |
Adocus sp. Cope 1868 turtle | |
Helopanoplia distincta Hay 1908 turtle | |
Chelydridae indet. Swainson 1839 turtle | |
Compsemys victa Leidy 1856 turtle | |
Baenidae indet. Cope 1882 turtle | |
Champsosaurus sp. Cope 1876 choristodere | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Aves | |
Aves indet. Linnaeus 1758 bird | |
Reptilia | |
Richardoestesia isosceles Sankey 2001 maniraptoran | |
Paronychodon lacustris Cope 1876 maniraptoran | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Thoracosaurus neocesariensis De Kay 1842 crocodilian | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Amphibia | |
Caudata indet. salamander | |
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar | |
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish |