Where: Slope County, North Dakota (46.4° N, 103.9° 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 -3.40, K-T section 86148
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; carbonaceous shale
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 45381: authorized by Matthew Carrano, entered by Matthew Carrano on 20.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus, Melvius thomasi
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
Melvius thomasi Bryant 1987 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar | |
Amphibia | |
Caudata indet. salamander | |
Reptilia | |
"Coelurosauridae indet." = Coeluridae
"Coelurosauridae indet." = Coeluridae Marsh 1881 coelurid | |
Ornithomimidae indet. Marsh 1890 ornithomimid | |
Aves | |
Aves indet. Linnaeus 1758 bird | |
Reptilia | |
Caenagnathidae indet. Sternberg 1940 maniraptoran | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Thoracosaurus neocesariensis De Kay 1842 crocodilian | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Lepidosauria indet. Haeckel 1866 lepidosaur | |
Champsosaurus sp. Cope 1876 choristodere | |
Adocus sp. Cope 1868 turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Helopanoplia distincta Hay 1908 turtle | |
Basilemys sinuosa Riggs 1906 turtle | |
Compsemys victa Leidy 1856 turtle | |
Plesiobaena antiqua Lambe 1902 turtle |