PTRM V88009, Mud Buttes: Late/Upper Maastrichtian, North Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Actinopteri
- Amiiformes
- Amiidae
|
|||||||
Kindleia fragosa
Jordan 1927
|
1 specimen | ||||||
recombined as Cyclurus fragosus | |||||||
Reptilia
|
|||||||
Leidyosuchus sternbergi
(Gilmore 1910)
|
2 specimens | ||||||
recombined as Borealosuchus sternbergii | |||||||
Brachychampsa montana
Gilmore 1911
|
1 specimen | ||||||
Compsemys victa
(Leidy 1856)
|
1 specimen | ||||||
Reptilia
- Testudines
- Adocidae
|
|||||||
Adocus sp.
Cope 1868
|
1 specimen | ||||||
Reptilia
- Testudines
|
|||||||
Helopanoplia distincta
Hay 1908
|
1 specimen | ||||||
Chondrichthyes
- Rajiformes
- Rhinobatidae
|
|||||||
Myledaphus bipartitus
Cope 1876
|
1 specimen | ||||||
Chondrichthyes
- Hybodontiformes
- Lonchidiidae
|
|||||||
Lissodus selachos
(Estes 1964)
|
2 specimens | ||||||
original and current combination Lonchidion selachos | |||||||
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: | 8.29 m | ||
Local order: | top to bottom | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: datum -8.29, K-T section 9906 |
Lithology and environment
Primary lithology: | sandy siltstone |
Includes fossils? | Y |
Environment: | crevasse splay |
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: | 45119 | ||
Authorizer: | M. Carrano | Enterer: | M. Carrano |
Modifier: | G. Varnham | Research group: | vertebrate |
Created: | 2004-10-06 10:08:29 | Last modified: | 2022-02-01 07:44:44 |
Access level: | the public | Released: | 2004-10-06 10:08:29 |
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] |