Where: Uintah County, Utah (40.1° N, 109.7° W: paleocoordinates 42.9° N, 98.7° W)
• coordinate stated in text
When: upper Wagonhound Member (Uinta Formation), Uintan (46.2 - 39.7 Ma)
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: D. R. Prothero. 1996. Magnetic stratigraphy and biostratigraphy of the middle Eocene Uinta Formation, Uinta Basin, Utah. In D. R. Prothero and R. J. Emry (eds.), The Terrestrial Eocene-Oligocene Transition in North America 3-24 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 16654: authorized by John Alroy, entered by John Alroy on 21.09.1998, edited by Terri Cleary and Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
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Oxyaenodon dysodus1 Matthew 1899 creodont probably includes type and referred specimen of Peterson 1919 from "White River"
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Hylomeryx annectens Peterson 1919 even-toed ungulate probably includes type from "Red Bluff wash between White and Green Rivers" (Gazin 1955) or "near Vernal" (Peterson 1919), listed as "near the base of Uinta C" by Peterson 1919 but placed in Uinta B by both Gazin and Kay
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Protoreodon parvus3 Scott and Osborn 1887 agriochoerid referred specimens; type is from Uinta B according to Thorpe 1937; includes "Protoreodon paradoxicus," which is probably the type of Scott 1898
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Epihippus gracilis Marsh 1871 horse | |
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Isectolophus annectens Scott and Osborn 1887 odd-toed ungulate may include the type, which according to Peterson 1919 is of uncertain provenance but according to Radinsky 1963 is from "Uinta B"; no other Uinta B specimens are discussed by any author
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Amynodon advenus Marsh 1875 odd-toed ungulate probably includes material of Wall 1982 from Uinta B, White River; "A. advenum" of earlier authors; and presumably type of "A. erectus" of Troxell 1921c from "White River"
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Triplopus obliquidens Scott and Osborn 1887 odd-toed ungulate probably includes "T. grangeri" Wood 1927 type from "near the White River... top of Horizon B2"; may include "Hyrachyus douglassi" of Wood 1934 (Triplopus sp. of Radinsky 1967a) from "Uinta B, the Telmatotherium Beds, of White River" that was referred to "Helaletes guyotti" by Osborn
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Simidectes medius n. sp.
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Pareumys grangeri Burke 1935 rodent see Burke 1935a: "Wagonhound Member... White River"; type and referred specimen
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Macrotarsius jepseni n. sp., Ourayia uintensis n. sp.
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| Reptilia | |
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