Where: Bowman County, North Dakota (46.0° N, 103.8° W: paleocoordinates 52.2° 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 -3.17, K-T section 9906
• 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 45112: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004, edited by Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Caenagnathidae indet. Sternberg 1940 maniraptoran | |
Richardoestesia isosceles Sankey 2001 maniraptoran | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Champsosaurus sp. Cope 1876 choristodere | |
"Kinosternidae indet." = Kinosternoidea
"Kinosternidae indet." = Kinosternoidea Hay 1892 mud turtle | |
Trionychidae indet. Gray 1825 softshell turtle | |
Mammalia | |
Theria indet. Parker and Haswell 1897 mammal | |
Amphibia | |
Opisthotriton kayi Auffenberg 1961 salamander | |
Habrosaurus dilatus Gilmore 1928 siren
Scapherpeton tectum Cope 1876 salamander | |
Actinopteri | |
Lepisosteus occidentalis Leidy 1856 gar | |
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin | |
Belonostomus longirostris Lambe 1902 | |
Teleostei indet. Müller 1846 | |
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish |