WC-2 (Oligocene of the United States)

Also known as Wildcat Creek; UCMP V-3958-1-3; UCMP V-6603; UCMP V-6233; UCMP V-6338; UWBM A- 8762; USFS-9-16; JODA-WCTS07053; JODA-WCTS070516; JODA- WCDG06051

Where: Yakima County, Washington (46.7° N, 121.1° W: paleocoordinates 46.4° N, 112.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Monroecreekian (26.3 - 24.8 Ma)

• from unit B of the upper Wildcat Creek beds, which is bracketed by dates of 27.16 +/- 0.19 and 26.97 +/- 0.30 Ma (i.e., Geringian or Monroecreekian), and said to be "medial early Arikareean" or "Ar 2" (i.e., Monroecreekian)

• group of beds-level stratigraphic resolution

Environment/lithology: "floodplain"; paleosol/pedogenic tuff

• "distal volcaniclastic facies deposition" involving "air-fall deposits characterized by massive beds of extremely fine to fine ash"
• "Unit B is characterized by massive 0.5 to 10 m thick fine ash tuffs intercalated with 10 to 50 cm lapillistone beds" that "contain well sorted, subangular to rounded, very coarse to fine lapilli-sized mudclasts and pumice, and glass shards, finer plagioclase and amphibole crystals" with "weakly developed paleosols"

Size class: macrofossils

Primary reference: C. Strganac. 2011. Terrestrial mammal fossils from the Wildcat Creek Beds (Paleogene), Tieton River Area, south-central Washington, USA. Palaeontologia Electronica 14(3) [J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 119838: authorized by John Alroy, entered by John Alroy on 02.11.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Carnivora - Canidae
Cormocyon copei, Enhydrocyon sp., "Parenhydrocyon josephi" = Paraenhydrocyon josephi
Cormocyon copei Wang and Tedford 1992 bone-crushing dog
Enhydrocyon sp. Cope 1879 canid
"Parenhydrocyon josephi" = Paraenhydrocyon josephi Cope 1881 canid
 Perissodactyla - Equidae
Miohippus sp., Miohippus ? equinanus, Miohippus cf. equiceps
Miohippus sp. Marsh 1874 anchitheriine horse
Miohippus ? equinanus Osborn 1918 anchitheriine horse
Miohippus cf. equiceps Cope 1878 anchitheriine horse
 Perissodactyla - Rhinocerotidae
cf. Diceratherium sp., Diceratherium annectens
cf. Diceratherium sp. Marsh 1875 rhinoceros
Diceratherium annectens Marsh 1873 rhinoceros
 Artiodactyla - Merycoidodontidae
Eporeodon sp., Merycoides sp., Mesoreodon sp.
Eporeodon sp. Marsh 1875 oreodont
Merycoides sp. Douglass 1907 oreodont
Mesoreodon sp. Scott 1893 oreodont
 Artiodactyla - Tayassuidae
Tayassuidae indet.
Tayassuidae indet. Palmer 1897 peccary
 Artiodactyla - Hypertragulidae
Hypertragulus sp.
Hypertragulus sp. Cope 1874 ruminant