White River Fauna

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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.

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:

Genus Species Clade Epoch Image Notes
†Agnotocastor
  • †A. praeteredens (type)
 Castoridae Eocene-Miocene Agnotocastor.jpg
Alligator Crocodilia Eocene Alligator prenasalis (specimen AMNH 4994) -20120521-RM-224539.jpg
†Archaeocyon
  • †A. leptodus (type)
  • †A. pavidus
  • †A. falkenbachi
 †Borophaginae Oligocene Archaeocyon head restoration.jpg
†Archaeotherium
  • †A. mortoni (type)
 †Entelodontidae Oligocene Archaeotherium.jpg
†Bathornis
  • †B. veredus (type)
  • †B. celeripes
  • †B. cursor
  • †B. fricki
  • †B. geographicus
  • †B. grallator
  • †B. fax?
  • †B. minor
 †Bathornithidae Eocene-Miocene Bathornis grallator restoration.jpg The type genus of the Bathornithidae, large predatory birds related to seriemas.[1]
†Bothriodon
  • †B. sp.
 †Anthracotheriidae Bothriodon brachyrhynchus.jpg
†Daeodon
  • †D. shoshonensis (type)
  • †D. humerosum?
 †Entelodontidae Miocene Daeodon shoshonensis 2.png
†Daphoneus
  • †D. vetus (type)
  • †D. hartshorianus
  • †D. lambei
  • †D. ruber
  • †D. socialis
  • †D. transversus
 †Amphicyonidae Eocene-Miocene Daphoenus vetus Leidy, 1853.jpg
†Dinictis
  • †D. felina (type)
 †Nimravidae Eocene-Miocene Dinictis Knight.jpg
†Eporeodon
  • †E. major (type)
  • †E. occidentalis
  • †E. pygmyus
 †Merycoidodontidae Oligocene Eporeodon major.JPG
†Hoplophoneus
  • H. primaevus (type)
  • H. occidentalis
  • H. strigidens
  • H. cerebralis
  • H. dakotensis
  • H. oharrai
  • H. sicarius
 †Nimravidae Eocene-Oligocene Hoplophoneus1 cropped.png
†Hyaenodon †Hyaenodontidae Hyaenodon Heinrich Harder.jpeg
†Hypertragulus †Hypertragulidae Hypertragulus calcaratus - National Museum of Natural History - IMG 2014.JPG
†Hyracodon †Hyracodontidae Hyracodon.jpg
†Ischyromys † Ischyromys oweni.jpg
†Leptomeryx † Leptomeryx cropped.png The most common fossil found in the area.[2]
†Leptauchenia †Merycoidodontidae Leptauchenia decora.jpg
†Megacerops †Brontotheriidae Megacerops BW.jpg
†Merycoidodon †Merycoidodontidae Merycoidodon Horsfall.jpg
†Mesohippus Equidae Mesohippus cropped.png
†Metamynodon †Amynodontidae Knight Metamynodon cropped.png
†Miniochoerus †Merycoidodontidae Miniochoerus.jpg
†Miohippus Equidae Miohippus skeleton.jpg
†Nimravus †Nimravidae Nimravus major (fossil false sabertooth mammal with canine tooth piercing another bone) (Oligocene; Black Hank Canyon, Wildcat Hills, Nebraska, USA) 4 (32658241572).jpg
†Osbornodon Canidae
†Palaeolagus Leporidae Palaeolagus NT small.jpg
†Paracrax †Bathornithidae Closely related and similar to the conspecific Bathornis; however, it seems to have occupied more arid environments.[3]
†Parictis †Amphicynodontinae
†Peltosaurus Anguidae Peltosaurus sp.jpg
†Poebrotherium
  • †P. wilsoni (type)
  • †P. chadronensis
  • †P. eximium
  • †P. franki
  • †P. labratum
 Camelidae Poebrotherium.jpg
†Protapirus Tapiridae Protapirus.jpg
†Protoceras †Protoceratidae Protoceras.jpg
†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 Stylemys fossil 1.jpg
†Subhyracodon Rhinocerotidae Subhyracodon tridactylus.jpg
†Xenocranium
  • †X. pileorivale (type)
 †Epoicotheriidae Oligocene

See also[]

  • Category:White River Fauna

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[]

  1. ^ Wetmore, A. (1927). "Fossil Birds from the Oligocene of Colorado" (PDF). Proceedings of the Colorado Museum of Natural History. 7 (2): 1–14.
  2. ^ 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.
  3. ^ Wetmore, A. (1927). "Fossil Birds from the Oligocene of Colorado" (PDF). Proceedings of the Colorado Museum of Natural History. 7 (2): 1–14.


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