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 -35.05, 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 45136: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Didelphodon vorax Marsh 1889 metatherian | |
? Meniscoessus sp. Cope 1882 multituberculate
Meniscoessus sp. Cope 1882 multituberculate | |
Reptilia | |
Compsemys victa Leidy 1856 turtle | |
Baenidae indet. Cope 1882 turtle | |
Helopanoplia distincta Hay 1908 turtle | |
Chelydridae indet. Swainson 1839 turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Adocus sp. Cope 1868 turtle | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Thoracosaurus neocesariensis De Kay 1842 crocodilian | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Thescelosaurus neglectus Gilmore 1913 ornithopod | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Richardoestesia isosceles Sankey 2001 maniraptoran | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Ornithomimidae indet. Marsh 1890 ornithomimid | |
Lepidosauria indet. Haeckel 1866 lepidosaur | |
Champsosaurus sp. Cope 1876 choristodere | |
Amphibia | |
Caudata indet. salamander | |
Opisthotriton kayi Auffenberg 1961 salamander | |
Scapherpeton tectum Cope 1876 salamander | |
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar | |
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish | |
"Lissodus selachos" = Lonchidion selachos
"Lissodus selachos" = Lonchidion selachos Estes 1964 elasmobranch |