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 -10.62, K-T section 9906
• 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 45117: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Amphibia | |
Scapherpeton tectum Cope 1876 salamander | |
Reptilia | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Champsosaurus sp. Cope 1876 choristodere | |
Lepidosauria indet. Haeckel 1866 lepidosaur | |
Trionychidae indet. Gray 1825 softshell turtle | |
Adocus sp. Cope 1868 turtle | |
Compsemys victa Leidy 1856 turtle | |
Actinopteri | |
"Kindleia fragosa" = Cyclurus fragosus, Melvius thomasi
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
Melvius thomasi Bryant 1987 bowfin | |
Lepisosteus occidentalis Leidy 1856 gar | |
Chondrichthyes | |
Myledaphus bipartitus Cope 1876 guitarfish |