PBDB Collection

Henry's Fork Hill (Bridger D): Bridgerian, Wyoming

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Reptilia

	Pristichampsus vorax (Troxell 1925)	Langston 1975
	AMNH 2090 (fragmentary skeleton)
Mammalia - Dinocerata - Uintatheriidae

	Uintatherium anceps (Marsh 1871)	Wheeler 1961
	Bridger D4
Mammalia - Condylarthra - Hyopsodontidae

	Hyopsodus despiciens n. sp. Matthew 1909
	= Hyopsodus paulus Leidy 1870	Alroy 2002
	"top of Horizon D" Henry's Fork area according to Gazin 1976
Mammalia - Perissodactyla - Brontotheriidae

	Palaeosyops robustus (Marsh 1872)	Osborn 1929
	referred material from D3, D4

	Palaeosyops paludosus Leidy 1870	Lane 1932
	= Palaeosyops fontinalis Cope 1873	Alroy 2002
	includes type of "Palaeosyops paludosus confluentus": from "horizon C5-D4 about a mile northeast of Cedar Creek Mountain"

	Telmatherium cultridens n. sp. (Osborn et al. 1878)	Osborn 1929
	upper Bridger, and referred specimen from Bridger D3; type is said to be from Henry's Fork Divide by Gazin 1976
Mammalia - Homacodontidae

	Antiacodon venustus n. sp. Marsh 1872	West 1984
	Bridger D

	Microsus sp. Leidy 1870	Sinclair 1914
	Bridger D4

	Homacodon vagans n. sp. Marsh 1872	West 1984
	Bridger D
Mammalia - Helohyidae

	Helohyus lentus (Marsh 1871)	Sinclair 1914
	Henry's Fork Hill, Bridger D3; i.d. confirmed by West 1984
Mammalia - Creodonta

	Thinocyon medius (Wortman 1902)	Morlo and Gunnell 2003
	"Henrys Fork, Twin Buttes Member, Upper Bridger Formation" also "Br-3"
Mammalia - Primates - Microsyopidae

	Uintasorex parvulus n. sp. Matthew 1909
	from Bridger D; Henry's Fork area according to Gazin 1958a, Szalay 1969c
Mammalia - Primates - Notharctidae

	Notharctus robustior Leidy 1872	Granger and Gregory 1917
	Bridger D4; see also Robinson 1957
Mammalia - Primates - Omomyidae

	Uintanius turriculorum Matthew 1915	Matthew 1915
	= Uintanius ameghini Wortman 1904	Alroy 2002
	"Horizon D4 on Henry's Fork Hill"; see also Gazin 1958a
Mammalia - Apatemyidae

	Apatemys bellus Marsh 1872
	"upper part of Bridger D"; type is from Henry's Fork area according to Gazin 1958a, and I believe Matthew would not have referred non- Henry's Fork material without mentioning its provenance
see common names

Country:	United States	State/province:	Wyoming	County:	Sweetwater
Coordinates:	41.7° North, 109.0° West (view map)
Paleocoordinates:	49.0° North, 85.5° West (Wright 2013)
Basis of coordinate:	based on political unit

Period:	Paleogene	Epoch:	Eocene
10 m.y. bin:	Cenozoic 2
*Period:	Tertiary
Key time interval:	Bridgerian
Age range of interval:	50.5 - 46.2 m.y. ago
* legacy (obsolete) database fields

Formation:	Bridger	Member:	upper
Local section:	Bridg	Local bed:	6
Local order:	bottom to top

Also known as:	Cedar Mountain; Henry's Fork Table
Database number:	16236
Authorizer:	J. Alroy, P. Mannion, J. Marcot	Enterer:	J. Alroy, J. Marcot, P. Mannion
Research group:	vertebrate
Created:	2002-05-15 00:00:00	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2002-05-15 00:00:00
Creative Commons license:	CC0

6294		J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
1698		W. Granger and W. K. Gregory. 1917. A revision of the Eocene primates of the genus Notharctus. Bulletin of the American Museum of Natural History 37(34) [J. Alroy/J. Alroy/J. Ju]
2207		H. H. Lane. 1932. Variations in Palaeosyops. University of Kansas Science Bulletin 20(18):319-326 [J. Alroy/J. Alroy/M. Uhen]
46624		W. Langston. 1975. Ziphodont crocodiles: Pristichampsus vorax (Troxell), new combination. Fieldiana: Geology 33(16):291-314 [P. Mannion/P. Mannion/M. Carrano]
2471		W. D. Matthew. 1915. A revision of the Lower Eocene Wasatch and Wind River faunas. Part IV. - Entelonychia, Primates, Insectivora (part). Bulletin of the American Museum of Natural History 34(14):429-483 [J. Alroy/J. Alroy/P. Wagner]
52289		M. Morlo and G. F. Gunnell. 2003. Small Limnocyonines (Hyaenodontidae, Mammalia) From the Bridgerian Middle Eocene of Wyoming: Thinocyon, Prolimnocyon, And Iridodon, New Genus. Contributions from the Museum of Paleontology, University of Michigan 31(2):43-78 [J. Marcot/J. Marcot]
2708		H. F. Osborn. 1929. New Eurasiatic and American proboscideans. American Museum Novitates 393:1-22 [J. Alroy/J. Alroy/M. Carrano]
3164		W. J. Sinclair. 1914. A revision of the bunodont artiodactyla of the Middle and Lower Eocene of North America. Bulletin of the American Museum of Natural History 33(21):267-295 [J. Alroy/J. Alroy/J. Marcot]
3606		R. M. West. 1984. Paleontology and Geology of the Bridger Formation, Southern Green River Basin, Southwestern Wyoming. Part 7. Survey of Bridgerian Artiodactyla, including description of a skull and partial skeleton of Antiacodon pygmaeus. Milwaukee Public Museum Contributions in Biology and Geology 56:1-47 [J. Alroy/J. Alroy/J. Marcot]
3622		W. H. Wheeler. 1961. Revision of the Uintatheres. Peabody Museum of Natural History Bulletin 14:1-93 [J. Alroy/J. Alroy/M. Uhen]

Collection excludes:	some genera
Taxonomic list comments:not the same as North of Cedar Mountain (see)