Where: Slope County, North Dakota (46.3° N, 103.9° W: paleocoordinates 52.5° 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 -28.00, K-T section 86148
• bed-level stratigraphic resolution
Environment/lithology: "channel"; sandstone
Size classes: macrofossils, microfossils
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 45145: authorized by Matthew Carrano, entered by Matthew Carrano on 07.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Compsemys victa Leidy 1856 turtle | |
Baenidae indet. Cope 1882 turtle
Plesiobaena antiqua Lambe 1902 turtle | |
"Kinosternidae indet." = Kinosternoidea
"Kinosternidae indet." = Kinosternoidea Hay 1892 mud turtle | |
Helopanoplia distincta Hay 1908 turtle | |
Chelydridae indet. Swainson 1839 turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Adocus sp. Cope 1868 turtle | |
Basilemys sinuosa Riggs 1906 turtle | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Paronychodon lacustris Cope 1876 maniraptoran | |
Saurornitholestes sp. Sues 1978 maniraptoran | |
Caenagnathidae indet. Sternberg 1940 maniraptoran | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Champsosaurus sp. Cope 1876 choristodere | |
Amphibia | |
Caudata indet. salamander | |
Scapherpeton tectum Cope 1876 salamander | |
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus, Melvius thomasi
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
Melvius thomasi Bryant 1987 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar | |
Osteichthyes | |
| |
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish |