PTRM V88012, Mud Buttes (Cretaceous of the United States)

Where: Bowman County, North Dakota (46.0° N, 103.8° W: paleocoordinates 52.6° N, 76.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• datum -2.37, K-T section 9906

• bed-level stratigraphic resolution

Environment/lithology: "floodplain"; siltstone

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 45120: authorized by Matthew Carrano, entered by Matthew Carrano on 06.10.2004, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Actinopteri
 Amiiformes - Amiidae
"Kindleia fragosa" = Cyclurus fragosus
"Kindleia fragosa" = Cyclurus fragosus Jordan 1927 bowfin
 Lepisosteiformes - Lepisosteidae
Osteichthyes
 Temnospondyli - Albanerpetontidae
Albanerpetontidae indet. Fox and Naylor 1982 tetrapod
 Caudata -
Caudata indet. salamander
Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
 Avetheropoda - Dromaeosauridae
Richardoestesia isosceles Sankey 2001 coelurosaur
 Neornithischia - Ceratopsidae
Ceratopsidae indet. Marsh 1888 ceratopsid
 Crocodylia -
"Leidyosuchus sternbergi" = Borealosuchus sternbergii, Brachychampsa montana
"Leidyosuchus sternbergi" = Borealosuchus sternbergii Gilmore 1910 crocodilian
Brachychampsa montana Gilmore 1911 crocodilian
 Choristodera -
Champsosaurus sp. Cope 1876 choristodere