Fossil animals found in the western US
The White River Fauna are fossil animals found in the White River Badlands of South Dakota , Wyoming , Colorado and Nebraska in the United States including Badlands National Park .[ 1]
The fossils have been found in the White River Formation , Chadron Formation , Brule Formation , and the Arikaree Formation .
Animals from the White River Badlands date from the Eocene , Oligocene , the Miocene , and the Pliocene Epochs .
List
Genera include:
Birds
Genus
Species
Clade
Epoch
Image
Notes
†Bathornis
†B. veredus (type)
†B. celeripes
†B. cursor
†B. fricki
†B. geographicus
†B. grallator
†B. fax?
†B. minor
†Bathornithidae
Eocene-Miocene
The type genus of the Bathornithidae , large predatory birds related to seriemas .[ 2]
†Paracrax
†Bathornithidae
Closely related and similar to the conspecific Bathornis ; however, it seems to have occupied more arid environments.[ 3]
Mammals
Artiodactyls
Antracotheres
Camelids
Genus
Species
Clade
Epoch
Image
Notes
†Poebrotherium
†P. wilsoni (type)
†P. chadronensis
†P. eximium
†P. franki
†P. labratum
Camelidae
Entelodonts
Leptomerycids
Merycoidodontids
Protoceratids
Ruminants
Carnivorans
Amphiconid
Borophagin
Genus
Species
Clade
Epoch
Image
Notes
†Archaeocyon
†A. leptodus (type)
†A. pavidus
†A. falkenbachi
†Borophaginae
Oligocene
Canids
Creodonts
Felids
Genus
Species
Clade
Epoch
Image
Notes
†Dinictis
†Nimravidae
Eocene-Miocene
†Hoplophoneus
H. primaevus (type)
H. occidentalis
H. strigidens
H. cerebralis
H. dakotensis
H. oharrai
H. sicarius
†Nimravidae
Eocene-Oligocene
†Nimravus
†Nimravidae
Epoicotheres
Lagomorphs
Perissodactyls
Brototheres
Equids
Rhinocerotoids
Amynodonts
Hyracodontids
Rhinocerotids
Tapirids
Rodents
Reptiles
Genus
Species
Clade
Epoch
Image
Notes
Alligator
Crocodilia
Eocene
†Peltosaurus
Anguidae
†Stylemys
†S. nebrascensis (type)
†S. botti
†S. calaverensis
†S. canetotiana
†S. capax
†S. conspecta
†S. copei
†S. emiliae
†S. frizaciana
†S. karakolensis
†S. neglectus
†S. oregonensis
†S. pygmea
†S. uintensis
†S. undabuna
Testudinidae
See also
Further reading
Rachel Benton, The White River Badlands: Geology and Paleontology , Indiana University Press 2015
William Berryman Scott , A history of land mammals in the western hemisphere , MacMillan Publishing Company, 1913
References
^ Scott, W. B., & Jepsen, G. L. (1940). The Mammalian Fauna of the White River Oligocene: Part IV. Artiodactyla. Transactions of the American Philosophical Society, 28(4), 363–746. https://doi.org/10.2307/1005504
^ Wetmore, A. (1927). "Fossil Birds from the Oligocene of Colorado" (PDF) . Proceedings of the Colorado Museum of Natural History . 7 (2): 1–14.
^ Wetmore, A. (1927). "Fossil Birds from the Oligocene of Colorado" (PDF) . Proceedings of the Colorado Museum of Natural History . 7 (2): 1–14.
^ Emry, Robert J. (1973). "Stratigraphy and Preliminary Biostratigraphy of the Flagstaff Rim Area, Natrona County, Wyoming" . Smithsonian Contributions to Paleobiology (18): 1–43. doi :10.5479/si.00810266.18.1 . ISSN 0081-0266 .