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