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 -89.40, K-T section 9906
• bed-level stratigraphic resolution
Environment/lithology: crevasse splay; sandstone
Size classes: macrofossils, mesofossils
Collection methods: bulk, sieve,
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: paleoecologic analysis
PaleoDB collection 45102: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004, edited by Roger Benson, Patricia Holroyd and Richard Butler
Creative Commons license: CC BY (attribution)
Taxonomic list
Osteichthyes | |
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Amphibia | |
Caudata indet. salamander | |
Habrosaurus dilatus Gilmore 1928 siren
Scapherpeton tectum Cope 1876 salamander | |
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Reptilia | |
Ceratopsidae indet. Marsh 1888 ceratopsid | |
Thescelosaurus neglectus Gilmore 1913 ornithopod | |
Hadrosaurinae indet. Lambe 1918 hadrosaurine | |
Paronychodon lacustris Cope 1876 maniraptoran | |
Saurornitholestes sp. Sues 1978 maniraptoran
Richardoestesia isosceles Sankey 2001 maniraptoran | |
Caenagnathidae indet. Sternberg 1940 maniraptoran | |
Tyrannosaurus rex Osborn 1905 tyrant lizard king | |
Brachychampsa montana Gilmore 1911 crocodilian | |
Thoracosaurus neocesariensis De Kay 1842 crocodilian | |
"Leidyosuchus sternbergi" = Borealosuchus sternbergii
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian | |
Champsosaurus sp. Cope 1876 choristodere | |
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Mammalia | |
Mammalia indet. mammal | |
Meniscoessus sp. Cope 1882 multituberculate
Meniscoessus robustus Marsh 1889 multituberculate | |
Cimolodon nitidus Marsh 1889 multituberculate | |
Didelphodon sp. Marsh 1889 metatherian | |
Actinopteri | |
Teleostei indet. Müller 1846 | |
Belonostomus longirostris Lambe 1902 | |
"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 | |
"Lissodus selachos" = Lonchidion selachos
"Lissodus selachos" = Lonchidion selachos Estes 1964 elasmobranch |