PTRM V88004, Mud Buttes: Late Maastrichtian, North Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Amiiformes - Amiidae
2 specimens
Kindleia fragosa Jordan 1927
150 specimens
Actinopteri - Lepisosteiformes - Lepisosteidae
21 specimens
Reptilia - Baenidae
Baenidae indet. Cope 1882
1 specimen
1 specimen
Lyson et al. 2011 1 specimen
PTRM 9386, neural fragment
Reptilia
1 specimen
Reptilia - Testudines - Adocidae
1 specimen
Reptilia - Testudines - Chelydridae
1 specimen
Reptilia - Testudines - Trionychidae
1 specimen
Reptilia - Testudines - Nanhsiungchelyidae
1 specimen
Reptilia
12 specimens
11 specimens
Reptilia - Gavialidae
1 specimen
Reptilia - Hadrosauridae
7 specimens
Reptilia - Ceratopsidae
28 specimens
Reptilia
1 specimen
Reptilia - Dromaeosauridae
6 specimens
3 specimens
Reptilia - Caenagnathidae
2 specimens
Reptilia - Tyrannosauridae
3 specimens
Reptilia
10 specimens
14 specimens
Mammalia
1 specimen
Amphibia - Temnospondyli
Caudata indet. (Scopoli 1777)
6 specimens
Amphibia - Temnospondyli - Batrachosauroididae
1 specimen
Amphibia - Temnospondyli - Urodela
2 specimens
9 specimens
Chondrichthyes - Rajiformes - Rhinobatidae
6 specimens
Chondrichthyes - Hybodontiformes - Lonchidiidae
1 specimen
see common names

Geography
Country:United States State/province:North Dakota County:Bowman
Coordinates: 46.0° North, 103.8° West (view map)
Paleocoordinates:56.0° North, 62.9° West (Wright 2013)
Basis of coordinate:estimated from map
Altitude:970 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:Mud Buttes Local bed:10.61 m
Local order:top to bottom
Stratigraphic resolution:bed
Stratigraphy comments: datum -10.61, K-T section 9906
Lithology and environment
Primary lithology: silty mudstone
Includes fossils?Y
Environment:"floodplain"
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
Metadata
Database number:45118
Authorizer:M. Carrano, R. Benson Enterer:M. Carrano, R. Benson
Modifier:G. Varnham Research group:vertebrate
Created:2004-10-06 08:56:37 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-10-06 08:56:37
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:

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]