PTRM V98027, Cannonball Creek: Late Maastrichtian, North Dakota
collected by North Dakota Geological Survey 1995

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Amiiformes - Amiidae
1 specimen
Kindleia fragosa Jordan 1927
29 specimens
Actinopteri - Lepisosteiformes - Lepisosteidae
29 specimens
Actinopteri
Teleostei indet. (Müller 1846)
3 specimens
Reptilia - Baenidae
1 specimen
Lyson et al. 2011 1 specimen
PTRM 10020, preneural?
Reptilia - Testudines - Adocidae
1 specimen
Reptilia - Testudines - Trionychidae
1 specimen
Reptilia - Testudines
1 specimen
Reptilia
11 specimens
Reptilia - Gavialidae
1 specimen
Reptilia - Hadrosauridae
24 specimens
Reptilia - Ceratopsidae
9 specimens
Reptilia
1 specimen
2 specimens
Mammalia
Boyd et al. 2017
NDGS 1796, 1797 and 1799
Mammalia - Multituberculata
Boyd et al. 2017
NDGS 1794 and 1795
Mammalia - Multituberculata - Neoplagiaulacidae
Boyd et al. 2017
NDGS 1789
Mammalia - Multituberculata - Cimolodontidae
Boyd et al. 2017
NDGS 1790 and 1791
Mammalia - Multituberculata - Cimolomyidae
Boyd et al. 2017
NDGS 1792
Mammalia - Glasbiidae
Boyd et al. 2017
NDGS 1793, 1720-1724
Mammalia - Alphadontidae
Boyd et al. 2017
NDGS 1801
Mammalia - Gypsonictopidae
Boyd et al. 2017
NDGS 1798 and 1800
Amphibia - Temnospondyli
1 specimen
Caudata indet. Scopoli 1777
1 specimen
Amphibia - Temnospondyli - Urodela
1 specimen
Chondrichthyes - Rajiformes - Rhinobatidae
18 specimens
Chondrichthyes - Hybodontiformes - Lonchidiidae
1 specimen
see common names

Geography
Country:United States State/province:North Dakota County:Slope
Coordinates: 46.4° North, 104.0° West (view map)
Paleocoordinates:56.5° North, 62.8° West (Wright 2013)
Basis of coordinate:estimated from map
Altitude:860 meters
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Maastrichtian 10 m.y. bin: Cretaceous 8
Key time interval: Late Maastrichtian
Age range of interval: 72.2 - 66 m.y. ago
Stratigraphy
Formation:Hell Creek
Local section:Cannonball Creek Local bed:10.62 m
Local order:top to bottom
Stratigraphic resolution:bed
Stratigraphy comments: datum -10.62, K-T section 9909
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:"channel"
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Disassociated major elements:many
Disassociated minor elements:many
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Collectors:North Dakota Geological Survey Collection dates:1995
Metadata
Also known as:NDGS L226
Database number:45137
Authorizer:M. Carrano, R. Benson, P. Mannion Enterer:M. Carrano, P. Mannion, R. Benson
Modifier:G. Varnham Research group:vertebrate
Created:2004-10-06 14:24:51 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-10-06 14:24:51
Creative Commons license:CC0
Reference information

Primary reference:
11749.ETE 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]

Secondary references:

62517 C. A. Boyd, J. J. Person, and B. Barnes. 2017. Additions to the Lancian mammalian fauna from southwest North Dakota. Journal of Vertebrate Paleontology e1325368:1-15 [P. Mannion/P. Mannion]
41937 T. R. Lyson, W. G. Joyce, G. E. Knauss and D. A. Pearson. 2011. Boremys (Testudines, Baenidae) from the latest Cretaceous and early Paleocene of North Dakota: an 11 million year range extension and an additional K/T survivor. Journal of Vertebrate Paleontology 31(4):729-737 [R. Benson/R. Benson]