PTRM V97024 (Cretaceous of the United States)

Where: Slope County, North Dakota (46.4° N, 103.9° W: paleocoordinates 52.7° N, 76.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hell Creek Formation, Maastrichtian (72.1 - 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
 Amiiformes - Amiidae
Melvius thomasi, "Kindleia fragosa" = Cyclurus fragosus
Melvius thomasi Bryant 1987 bowfin
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Osteichthyes
 Caudata -
Caudata indet. salamander
Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Testudines -
Compsemys victa Leidy 1856 turtle
 Testudines - Baenidae
Plesiobaena antiqua Lambe 1902 turtle
 Testudines - Nanhsiungchelyidae
Basilemys sinuosa Riggs 1906 turtle
 Testudines - Adocidae
Adocus sp. Cope 1868 turtle
 Testudines - Pantrionychidae
Helopanoplia distincta Hay 1908 turtle
 Avetheropoda - Caenagnathidae
Caenagnathidae indet. Sternberg 1940 coelurosaur
Aves
  -
Aves indet. Linnaeus 1758 bird
Reptilia
 Avetheropoda - Tyrannosauridae
Tyrannosaurus rex Osborn 1905 tyrant lizard king
 Avetheropoda - Ornithomimidae
Ornithomimidae indet. Marsh 1890 ornithomimid
 Avetheropoda - Coeluridae
"Coelurosauridae indet." = Coeluridae
"Coelurosauridae indet." = Coeluridae Marsh 1881 coelurid
 Neornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian
Brachychampsa montana Gilmore 1911 crocodilian
Thoracosaurus neocesariensis De Kay 1842 crocodilian
 Eosuchia -
Lepidosauria indet. Haeckel 1866 lepidosaur
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere