Also known as Second Bench
Where: Fremont County, Wyoming (43.2° N, 108.2° W: paleocoordinates 44.0° N, 104.6° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Arikaree Formation, Hemingfordian (20.4 - 16.0 Ma)
Environment/lithology: eolian; lithology not reported
Size class: macrofossils
Reposited in the UCMP
Primary reference: J. Munthe. 1988. Miocene mammals of the Split Rock area, Granite Mountains basin, central Wyoming. University of California Publications in Geological Sciences 126:1-136 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 19074: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Patricia Holroyd
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Mammalia | |
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Tylocephalonyx skinneri Coombs 1979 chalicothere | |
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Merycodus cf. sabulonis Matthew and Cook 1909 pronghorn | |
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cf. Barbouromeryx sp. Frick 1937 ruminant | |
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Camelidae indet. Gray 1821 camel | |
Brachycrus rusticus, "Brachycrus vaughani" = Brachycrus laticeps
Brachycrus rusticus Leidy 1870 oreodont
"Brachycrus vaughani" = Brachycrus laticeps Douglass 1900 oreodont | |
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Miomustela sp. Hall 1930 mustelid carnivore
cf. Leptarctus sp. Leidy 1856 mustelid carnivore | |
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? Procyonidae indet. Gray 1825 procyonid carnivore | |
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"Tomarctus kelloggi" = Paracynarctus kelloggi Merriam 1911 bone-crushing dog confirmed by Wang et al. 1999
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Mesoscalops scopelotemos Reed 1960 placental | |
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Limnoecus sp. Stirton 1930 shrew | |
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Brachyerix macrotis Matthew 1933 hedgehog
Parvericius montanus Koerner 1940 hedgehog | |
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Oreolagus nebrascensis McGrew 1941 pika | |
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Leporidae indet. Fischer de Waldheim 1817 rabbit
? Desmatolagus schizopetrus Dawson 1965 rabbit | |
"Mesogaulus novellus" = Galbreathia novellus, "Mesogaulus vetus" = Alphagaulus vetus
"Mesogaulus novellus" = Galbreathia novellus Matthew 1924 rodent | |
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Protospermophilus kelloggi Black 1963 squirrel
Miospermophilus wyomingensis Black 1963 squirrel | |
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Harrymys irvini Munthe 1988 rodent
Schizodontomys harkseni Macdonald 1970 rodent | |
"Plesiosminthus sabrae" = Schaubeumys sabrae
"Plesiosminthus sabrae" = Schaubeumys sabrae Black 1958 jumping mouse | |
| Reptilia | |
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