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White River - upper, Wyoming, USA

Formation	White River
Member	upper
Age:	37.2 - 33.3 Ma Paleogene
Interval	Chadronian
Number of Collections	6
Number of Occurrences	21

Recorded Sample Locations

Location	Region	Stratigraphic Name
Ledge	Fremont County, Wyoming, USA	White River - upper
Ferris Formation	Carbon County, Wyoming, USA	White River - upper

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Arikaree	20.4 - 5.33 Ma Miocene	siliciclastic	278
Aycross	50.3 - 46.2 Ma Eocene	sandstone	146
Ferris	66.0 - 56.0 Ma Paleocene	mudstone, "siliciclastic", conglomerate	500
Fort Union - Shotgun	56.8 - 55.8 Ma Paleogene		69
Hanna - lower	61.7 - 56.8 Ma Paleocene		58
Hanna - upper	55.8 - 50.3 Ma Eocene		2
Indian Meadows	55.8 - 50.3 Ma Eocene		23
Lower Variegated Sequence - basal	55.8 - 50.3 Ma Eocene		7
Medicine Bow	70.6 - 66.0 Ma Late/Upper Cretaceous	siliciclastic	11
Middle Variegated Sequence	55.8 - 50.3 Ma Eocene		6
North Park	23.0 - 5.33 Ma Miocene		19
Split Rock	16.0 - 5.33 Ma Miocene		11
Tepee Trail - Unit 24	46.2 - 40.4 Ma Eocene		32
Tepee Trail - Unit 30	46.2 - 40.4 Ma Eocene		1
top of Lower Variegated Sequence	55.8 - 50.3 Ma Eocene		3
Upper Variegated Sequence	55.8 - 50.3 Ma Eocene		8
Wagon Bed	46.2 - 40.4 Ma Eocene	sandstone/siltstone	2
Wagon Bed - Unit 3	50.3 - 46.2 Ma Eocene		3
Wagon Bed - Unit 5	46.2 - 40.4 Ma Eocene		7
Wagon Bed ("Tepee Trail") - Hendry Ranch	46.2 - 40.4 Ma Eocene		4
Wasatch	55.8 - 50.3 Ma Eocene		182
Wasatch - Cathedral Bluffs Tongue	50.3 - 46.2 Ma Eocene	mudstone	92
Wasatch - Niland Tongue	55.8 - 50.3 Ma Eocene	sandstone, "shale", siltstone	83
White River	30.8 - 20.4 Ma Cenozoic	mudstone, siltstone, sandstone	329
White River - Beaver Divide Conglomerate	37.2 - 33.9 Ma Paleogene		1
White River - Big Sand Draw Sandstone Lentil	37.2 - 33.9 Ma Paleogene		9
Wiggins	46.2 - 40.4 Ma Eocene		35
Wind River	48.6 - 37.2 Ma Eocene		440
Wind River - Lost Cabin	50.3 - 46.2 Ma Eocene	mudstone	403
Wind River - Lysite	55.8 - 50.3 Ma Eocene		31

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Camelidae family	5	Animalia : Chordata : Mammalia : Artiodactyla : Camelidae	37.2 - 33.3 Ma Paleogene
Poebrotherium sp. genus	6	Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : *Poebrotherium*	37.2 - 33.9 Ma Paleogene
Poebrotherium wilsoni species	7	Animalia : Chordata : Mammalia : Artiodactyla : Camelidae : Poebrotherium : *Poebrotherium wilsoni*	37.2 - 33.9 Ma Paleogene
Leptomeryx esulcatus species	7	Animalia : Chordata : Mammalia : Artiodactyla : Leptomerycidae : Leptomeryx : *Leptomeryx esulcatus*	37.2 - 33.9 Ma Paleogene
Leptomeryx evansi species	7	Animalia : Chordata : Mammalia : Artiodactyla : Leptomerycidae : Leptomeryx : *Leptomeryx evansi*	37.2 - 33.3 Ma Paleogene
Merycoidodon (Merycoidodon) culbertsoni species	7	Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae : Merycoidodon : *Merycoidodon (Merycoidodon) culbertsoni*	37.2 - 33.9 Ma Paleogene
Merycoidodontidae family	5	Animalia : Chordata : Mammalia : Artiodactyla : Merycoidodontidae	37.2 - 33.9 Ma Paleogene
Campylocynodon personi species	7	Animalia : Chordata : Mammalia : Carnivora : Phocidae : Parictis : *Campylocynodon personi*	37.2 - 33.9 Ma Paleogene
Palaeolagus haydeni species	7	Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Palaeolagus : *Palaeolagus haydeni*	37.2 - 33.3 Ma Paleogene
Palaeolagus temnodon species	7	Animalia : Chordata : Mammalia : Lagomorpha : Leporidae : Palaeolagus : *Palaeolagus temnodon*	37.2 - 33.9 Ma Paleogene
Apternodus dasophylakas species	7	Animalia : Chordata : Mammalia : Apternodontidae : Apternodus : *Apternodus dasophylakas*	37.2 - 33.3 Ma Paleogene
Leptictidae family	5	Animalia : Chordata : Mammalia : Pilosa : Leptictidae	37.2 - 33.9 Ma Paleogene
Rhinocerotidae family	5	Animalia : Chordata : Mammalia : Perissodactyla : Rhinocerotidae	37.2 - 33.3 Ma Paleogene
Subhyracodon sp. genus	6	Animalia : Chordata : Mammalia : Perissodactyla : Rhinocerotidae : *Subhyracodon*	37.2 - 33.9 Ma Paleogene
Subhyracodon occidentalis species	7	Animalia : Chordata : Mammalia : Perissodactyla : Rhinocerotidae : Subhyracodon : *Subhyracodon occidentalis*	37.2 - 33.9 Ma Paleogene
Cylindrodon sp. genus	6	Animalia : Chordata : Mammalia : Rodentia : Cylindrodontidae : *Cylindrodon*	37.2 - 33.9 Ma Paleogene
Ischyromys sp. genus	6	Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : *Ischyromys*	37.2 - 33.9 Ma Paleogene
Ischyromys veterior species	7	Animalia : Chordata : Mammalia : Rodentia : Ischyromyidae : Ischyromys : *Ischyromys veterior*	37.2 - 33.9 Ma Paleogene

References

Van Houten F. B. (1964) Tertiary geology of the Beaver Rim area, Fremont and Natrona Counties, Wyoming, United States Geological Survey Bulletin 1164, 1-99

Harshman E. N. (1972) Geology and uranium deposits, Shirley Basin area, Wyoming, United States Geological Survey Professional Paper 745, 1-82

Prothero D. R. (1996) Camelidae, The Terrestrial Eocene-Oligocene Transition in North America, 609-651

Alroy J. (2002) Synonymies and reidentifications of North American fossil mammals

Asher R. J., McKenna M. C., et al (2002) Morphology and relationships of Apternodus and other extinct, zalambdodont, placental mammals, Bulletin of the American Museum of Natural History 273, 1-117

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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