Dirty Creek Flats: Chadronian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Rodentia
- Ischyromyidae
|
||||||||||
? Leptotomus sp.
Matthew 1910
|
||||||||||
Ischyromys veterior
Matthew 1903
|
||||||||||
Mammalia
- Rodentia
- Aplodontidae
|
||||||||||
Prosciurus vetustus
(Matthew 1903)
|
||||||||||
original and current combination Sciurus (Prosciurus) vetustus | ||||||||||
Mammalia
- Rodentia
- Sciuridae
|
||||||||||
Protosciurus sp.
Black 1963
|
||||||||||
= Sciuridae indet.
Gray 1821
|
Alroy 2002 | |||||||||
Mammalia
- Rodentia
- Eomyidae
|
||||||||||
Adjidaumo minutus
(Cope 1873)
|
||||||||||
Mammalia
- Rodentia
- Cylindrodontidae
|
||||||||||
Pseudocylindrodon neglectus
Burke 1935
|
||||||||||
Mammalia
- Lagomorpha
- Leporidae
|
||||||||||
Palaeolagus temnodon
Douglass 1902
|
||||||||||
Megalagus brachyodon
(Matthew 1903)
|
||||||||||
Mammalia
- Micropternodontidae
|
||||||||||
Micropternodus borealis
Matthew 1903
|
||||||||||
Mammalia
- Perissodactyla
- Brontotheriidae
|
||||||||||
Brontotheriidae indet.
(Marsh 1873)
|
||||||||||
Mammalia
- Perissodactyla
- Hyracodontidae
|
||||||||||
Hyracodon nebraskensis
(Leidy 1850)
|
||||||||||
probably OK because Ostrander also recognizes H. priscidens | ||||||||||
Mammalia
- Perissodactyla
- Equidae
|
||||||||||
Mesohippus sp.
Marsh 1875
|
||||||||||
= Equidae indet.
Gray 1821
|
Alroy 2002 | |||||||||
Mammalia
- Tayassuidae
|
||||||||||
Perchoerus sp.
Leidy 1869
|
||||||||||
= Tayassuidae indet.
Palmer 1897
|
Alroy 2002 | |||||||||
Mammalia
- Camelidae
|
||||||||||
Poebrotherium sp.
Leidy 1847
|
||||||||||
Mammalia
- Entelodontidae
|
||||||||||
Archaeotherium sp.
Leidy 1850
|
||||||||||
Mammalia
- Protoceratidae
|
||||||||||
Pseudoprotoceras longinaris
Cook 1934
|
||||||||||
Mammalia
- Hypisodontidae
|
||||||||||
Hypisodus minimus
(Cope 1873)
|
||||||||||
Mammalia
- Leptomerycidae
|
||||||||||
Leptomeryx sp.
Leidy 1853
|
||||||||||
Mammalia
- Merycoidodontidae
|
||||||||||
Merycoidodon sp.
Leidy 1848
|
||||||||||
Mammalia
- Carnivora
- Amphicyonidae
|
||||||||||
Daphoenictis sp.
Hunt 1974
|
||||||||||
Mammalia
- Carnivora
- Canidae
|
||||||||||
Hesperocyon sp.
Scott 1890
|
||||||||||
see common names |
Geography
Country: | United States | State/province: | Nebraska | County: | Sioux |
Coordinates: | 42.4° North, 103.8° West (view map) | ||||
Paleocoordinates: | 43.8° North, 95.1° West | ||||
Basis of coordinate: | based on political unit |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
*Period: | Tertiary | ||
Key time interval: | Chadronian | ||
Age range of interval: | 37.20000 - 33.90000 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Chadron | Member: | Peanut Peak | ||
Local section: | PineR | Local bed: | 1 | ||
Local order: | bottom to top | ||||
Stratigraphy comments: member assignment based on LaGarry pers. commun. 19 May 2005 |
Lithology and environment
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Collection methods and comments
Taxonomic list comments:NE 1/4 sec 26 T33N R53W |
Metadata
Database number: | 16940 | ||
Authorizer: | J. Alroy | Enterer: | J. Alroy |
Modifier: | J. Alroy | Research group: | vertebrate |
Created: | 1993-02-18 00:00:00 | Last modified: | 2005-05-19 12:55:13 |
Access level: | the public | Released: | 1993-02-18 00:00:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
2716. | G. E. Ostrander. 1985. Correlation of the early Oligocene (Chadronian) in northwestern Nebraska. Dakoterra 2(2):205-231 [J. Alroy/J. Alroy/P. Holroyd] |
Secondary references:
6294 | J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari] |