PTRM V88017, Mud Buttes: Late/Upper Maastrichtian, North Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri - Aspidorhynchiformes - Aspidorhynchidae
Belonostomus longirostris (Lambe 1902)
1 specimen
Actinopteri
Teleostei indet. (Müller 1846)
1 specimen
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteus occidentalis (Leidy 1856)
9 specimens
original and current combination Lepidotus occidentalis
Actinopteri - Amiiformes - Amiidae
Kindleia fragosa Jordan 1927
10 specimens
recombined as Cyclurus fragosus
Reptilia
Champsosaurus sp. Cope 1876
1 specimen
Reptilia - Dromaeosauridae
Richardoestesia isosceles Sankey 2001
1 specimen
Reptilia - Caenagnathidae
Caenagnathidae indet. Sternberg 1940
1 specimen
Reptilia - Tyrannosauridae
Tyrannosaurus rex Osborn 1905
1 specimen
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
55 specimens
Reptilia - Hadrosauridae
Hadrosaurinae indet. Lambe 1918
20 specimens
Reptilia
Leidyosuchus sternbergi (Gilmore 1910)
14 specimens
recombined as Borealosuchus sternbergii
Brachychampsa montana Gilmore 1911
2 specimens
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
1 specimen
Reptilia - Testudines
Kinosternidae indet. (Hay 1892)
1 specimen
spelled with current rank as Kinosternoidea
Mammalia
Theria indet. Parker and Haswell 1897
1 specimen
Amphibia - Temnospondyli - Urodela
Habrosaurus dilatus Gilmore 1928
Gardner and DeMar 2013
Scapherpeton tectum Cope 1876
2 specimens
Amphibia - Temnospondyli - Batrachosauroididae
Opisthotriton kayi Auffenberg 1961
1 specimen
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
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:52.2° North, 77.3° West
Basis of coordinate:estimated from map
Altitude:970 meters
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Late/Upper Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Hell Creek
Local section:Mud Buttes Local bed:3.17 m
Local order:top to bottom
Stratigraphic resolution:bed
Stratigraphy comments: datum -3.17, K-T section 9906
Lithology and environment
Primary lithology: carbonaceous "shale"
Includes fossils?Y
Environment:"floodplain"
Taphonomy
Modes of preservation:body
Degree of concentration:concentrated
Size of fossils:macrofossils,mesofossils
Associated major elements:many
Disassociated major elements:many
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:45112
Authorizer:M. Carrano, P. Holroyd Enterer:M. Carrano, P. Holroyd
Modifier:G. Varnham Research group:vertebrate
Created:2004-10-06 08:14:34 Last modified:2022-02-01 07:45:33
Access level:the public Released:2004-10-06 08:14:34
Creative Commons license:CC BY
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:

65027 J. D. Gardner and D. G. DeMar. 2013. Mesozoic and Palaeocene lissamphibian assemblages of North America: a comprehensive review. Palaeobiodiversity and Palaeoenvironments 93:459-515 [P. Holroyd/P. Holroyd/M. Carrano]