Also known as UNSM Ap-112
Where: Antelope County, Nebraska (42.4° N, 98.1° W: paleocoordinates 42.8° N, 95.5° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Merritt Dam Member (Ash Hollow Formation), Late/Upper Clarendonian (13.6 - 10.3 Ma)
• single channel fill within a ca. 25 ft sandstone unit; stratigraphic position based on Korth 1997b
• bed-level stratigraphic resolution
Environment/lithology: "channel"; sandstone
Size classes: macrofossils, mesofossils
Reposited in the UNSM
Primary reference: M. R. Voorhies. 1990. Vertebrate biostratigraphy of the Ogallala Group in Nebraska. In T. C. Gustavson (ed.), Geologic Framework and Regional Hydrology: Upper Cenozoic Blackwater Draw and Ogallala Formations, Great Plains 115-151 [J. Alroy/J. Alroy/J. Marcot]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 18066: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Gomphotheriidae indet. Hay 1922 gomphothere | |
cf. Ischyrocyon sp. Matthew and Gidley 1904 bear-dog | |
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Equidae indet.1, Hypohippus sp., Protohippus supremus1, Pliohippus cf. pernix, Calippus sp., Pseudhipparion gratum6, Hippotherium sp.1
Hypohippus sp. Leidy 1858 anchitheriine horse
Pliohippus cf. pernix Marsh 1874 horse
Calippus sp. Matthew and Stirton 1930 horse | |
Teleoceras major Hatcher 1894 rhinoceros | |
Megatylopus sp. Matthew and Cook 1909 camel
Procamelus grandis Gregory 1939 camel
Pliauchenia magnifontis Gregory 1939 camel | |
"Merychyus major" = Ustatochoerus major1
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Cranioceras unicornis Matthew 1918 ruminant | |
Soricidae indet. Fischer 1814 shrew | |
Domninoides mimicus Wilson 1968 mole
cf. Mystipterus sp. Hall 1930 mole | |
Untermannerix copiosus Rich 1981 hedgehog
Metechinus amplior Rich 1981 hedgehog | |
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"Eucastor planus" = Nothodipoides planus
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"Phelosaccomys hibbardi" = Parapliosaccomys hibbardi3
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Hesperolagomys sp. Clark et al. 1964 pika | |
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