Where: Dawes County, Nebraska (42.7° N, 103.1° W: paleocoordinates 43.5° N, 97.2° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Arikaree Group, early Early Arikareean to early Early Arikareean (29.5 - 18.5 Ma)
• Faunal correlation places the Wa.gner Quarry in the early early Arikareean NALMA, slightly older than the radioisotopicaJlly calibrated Gering Formation faunas and slightly younger than the "Brown Siltstone" lf's. This constrains the magnetostratigraphy to Chron 10n (28.25-28.87 Ma, Berggren et al. 1995). The section records the short reversal of C10n.1r.
Environment/lithology: terrestrial; poorly lithified, massive, fine sandstone
Collected by R. Tedford, T. Galusha, M. Skinner in 1975, 1981; reposited in the AMNH, UNSM
Collection methods: bulk,
Primary reference: F. G. Hayes. 2007. Magnetostratigraphy and paleontology of Wagner Quarry, (late Oligocene, early Arikareean) basal Arikaree Group of the Pine Ridge region, Dawes County, Nebraska. Bulletin of the Florida Museum of Natural History 47(1):1-48 [J. Marcot/J. Marcot]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 156729: authorized by Jonathan Marcot, entered by Jonathan Marcot on 30.05.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Megalagus cf. primitivus Schlaikjer 1935 rabbit
Palaeolagus philoi Dawson 1958 rabbit
Palaeolagus hypsodus Schlaikjer 1935 rabbit | |
Leidymys blacki Macdonald 1963 mouse
Geringia mcgregori Macdonald 1970 mouse | |
Alwoodia cf. magna Rensberger 1983 rodent
Downsimus chadwicki Macdonald 1970 rodent | |
Cedromus savannae n. sp., Nototamias sp.
Cedromus savannae n. sp. Hayes 2007 squirrel
Nototamias sp. Pratt and Morgan 1989 squirrel | |
Agnotocastor sp. Stirton 1935 beaver
Palaeocastor sp. Leidy 1869 beaver | |
"Proheteromys cf. nebraskensis" = Kirkomys nebraskensis
"Proheteromys cf. nebraskensis" = Kirkomys nebraskensis Wood 1937 rodent | |
Canidae indet. Fischer de Waldheim 1817 canid | |
Paradaphoenus tooheyi n. sp.
Paradaphoenus tooheyi n. sp. Hunt 2001 bear-dog | |
Nimravus brachyops Cope 1878 false sabre-tooth | |
Miohippus sp. Marsh 1874 anchitheriine horse | |
Diceratherium armatum Marsh 1875 rhinoceros
Diceratherium annectens Marsh 1873 rhinoceros | |
Bothriodontinae indet. Scott 1940 anthracothere | |
Entelodontidae indet. Lydekker 1883 even-toed ungulate | |
Leptauchenia major Leidy 1856 oreodont | |
Nanotragulus loomisi Lull 1922 ruminant | |
Pseudolabis dakotensis Matthew 1904 camel | |
Ocajila makpiyahe Macdonald 1963 hedgehog | |
Proscalops sp. Matthew 1901 placental | |
Herpetotherium fugax Cope 1873 marsupial |