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
Actinopteri | |
Lepisosteus occidentalis Leidy 1856 gar | |
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin | |
Reptilia | |
Champsosaurus sp. Cope 1876 choristodere | |
Paronychodon lacustris Cope 1876 maniraptoran | |
Richardoestesia isosceles Sankey 2001 maniraptoran | |
Aves | |
Aves indet. Linnaeus 1758 bird | |
Reptilia | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Thoracosaurus neocesariensis De Kay 1842 crocodilian | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Baenidae indet. Cope 1882 turtle | |
Compsemys victa Leidy 1856 turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Adocus sp. Cope 1868 turtle | |
Chelydridae indet. Swainson 1839 turtle | |
Helopanoplia distincta Hay 1908 turtle | |
Mammalia | |
Multituberculata indet. Cope 1884 multituberculate | |
Amphibia | |
Caudata indet. salamander | |
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish |