Parnell Creek (Wilkins Peak) (Eocene of the United States)
Where: Sweetwater County, Wyoming (41.7° N, 109.0° W: paleocoordinates 45.6° N, 95.1° W)
• coordinate based on political unit
When: Wilkins Peak Member (Green River Formation), Bridgerian (50.3 - 46.2 Ma)
Environment/lithology: terrestrial
Primary reference: L. Grande. 1984. Paleontology of the Green River Formation, with a review of the fish fauna. Bulletin of the Geological Survey of Wyoming 63:1-333 [J. Alroy/J. Alroy/J. Alroy]more details
PaleoDB collection 16393: authorized by John Alroy, entered by John Alroy on 30.04.1994
Creative Commons license: CC BY (attribution)
Taxonomic list
• sec 24 T 25N R 102 W
the "Tipton Tongue" collection of McGrew and Roehler 1960 reported by Grande is the same as the "Parnell Creek locality" of Roehler 1991a; however, "Hyracotherium sp." from this "locality" is from a lower level than the specimens from the Farson Sandstone Mbr. of Roehler, which seems to equal the "Wilkins Peak" collection; I assume that the latter is really from the Farson Sandstone
Mauger 1977 gives two "Class 1" reliability K-Ar dates for Tuff 3 of this member at separate localities; although they are mutually compatible, the member is quite thick (Roehler 1992) and the faunal locality is quite distant from either of the dated localities
the "Tipton Tongue" collection of McGrew and Roehler 1960 reported by Grande is the same as the "Parnell Creek locality" of Roehler 1991a; however, "Hyracotherium sp." from this "locality" is from a lower level than the specimens from the Farson Sandstone Mbr. of Roehler, which seems to equal the "Wilkins Peak" collection; I assume that the latter is really from the Farson Sandstone
Mauger 1977 gives two "Class 1" reliability K-Ar dates for Tuff 3 of this member at separate localities; although they are mutually compatible, the member is quite thick (Roehler 1992) and the faunal locality is quite distant from either of the dated localities
Show authors, comments, and common names
Mammalia | |
Thisbemys sp. Wood 1959 rodent | |
Uintasorex parvulus Matthew 1909 primate
Microsyops elegans Marsh 1871 primate | |
Notharctus sp. Leidy 1870 primate | |
Washakius insignis Leidy 1873 tarsier | |
Talpavus nitidus Marsh 1872 placental
Vulpavus profectus Matthew 1909 placental | |
Hyopsodus minusculus Leidy 1873 condylarth | |
"Copedelphys innominata" = Herpetotherium innominatum, Herpetotherium knighti
"Copedelphys innominata" = Herpetotherium innominatum Simpson 1928 marsupial
Herpetotherium knighti McGrew et al. 1959 marsupial |