PTRM V98027, Cannonball Creek (Cretaceous of the United States)

Also known as NDGS L226

Where: Slope County, North Dakota (46.4° N, 104.0° W: paleocoordinates 52.8° N, 76.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hell Creek Formation, Maastrichtian (72.1 - 66.0 Ma)

• datum -10.62, K-T section 9909

• bed-level stratigraphic resolution

Environment/lithology: "channel"; sandstone

Size classes: macrofossils, mesofossils

Collected by North Dakota Geological Survey in 1995

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 45137: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004, edited by Roger Benson and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Hybodontiformes - Lonchidiidae
"Lissodus selachos" = Lonchidion selachos
"Lissodus selachos" = Lonchidion selachos Estes 1964 elasmobranch
 Myliobatiformes - Dasyatidae
Myledaphus bipartitus Cope 1876 whiptail stingray
Actinopteri
 Teleostei -
Teleostei indet. Müller 1846
 Amiiformes - Amiidae
Melvius thomasi, "Kindleia fragosa" = Cyclurus fragosus
Melvius thomasi Bryant 1987 bowfin
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Osteichthyes
 Salientia -
 Caudata -
Caudata indet. salamander
 Caudata - Urodela
Scapherpeton tectum Cope 1876 salamander
Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Testudines - Baenidae
Plesiobaena antiqua Lambe 1902 turtle
Boremys sp.2 Lambe 1906 turtle
PTRM 10020, preneural?
 Testudines - Adocidae
Adocus sp. Cope 1868 turtle
 Testudines - Pantrionychidae
Helopanoplia distincta Hay 1908 turtle
 Avetheropoda -
Paronychodon lacustris Cope 1876 coelurosaur
 Neornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Neornithischia - Hadrosauridae
Hadrosaurinae indet. Lambe 1918 hadrosaurine
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian
Thoracosaurus neocesariensis De Kay 1842 crocodilian
 Eosuchia -
Lepidosauria indet. Haeckel 1866 lepidosaur
Mammalia
 Mammalia -
Mammalia indet.1 mammal
NDGS 1796, 1797 and 1799
 Leptictida - Gypsonictopidae
Gypsonictops sp.1 Simpson 1927 eutherian
NDGS 1798 and 1800
 Didelphimorphia - Alphadontidae
Alphadon sp.1 Simpson 1927 marsupial
NDGS 1801
 Didelphimorphia - Glasbiidae
Glasbius twitchelli1 Archibald 1982 marsupial
NDGS 1793, 1720-1724
 Multituberculata -
Multituberculata indet.1 multituberculate
NDGS 1794 and 1795
 Multituberculata - Cimolomyidae
Essonodon browni1 Simpson 1927 multituberculate
NDGS 1792
 Multituberculata - Neoplagiaulacidae
Mesodma cf. thompsoni1 Clemens 1964 multituberculate
NDGS 1789
 Multituberculata - Cimolodontidae
Cimolodon nitidus1 Marsh 1889 multituberculate
NDGS 1790 and 1791