Also known as UNSM Kx-111
Where: Knox County, Nebraska (42.8° N, 97.8° W: paleocoordinates 43.1° N, 96.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Late/Upper Hemphillian (10.3 - 4.9 Ma)
• FT glass date of 5.0 +/- 0.2 Ma directly overlies site
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Reposited in the UNSM
Collection methods: bulk, sieve
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: taxonomic analysis
PaleoDB collection 18359: authorized by John Alroy, entered by John Alroy on 05.08.1992
Creative Commons license: CC BY (attribution)
Taxonomic list
•based on Voorhies 1988, three localities separated by at least 50 feet of section are represented
Reptilia | |
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Heterodon sp.4, Thamnophis sp.4, Colubrinae indet.4, Elaphe obsoleta4, Pituophis melanoleucus4, Lampropeltis getulus4
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Mammalia | |
Gomphotheriidae indet. Hay 1922 gomphothere | |
Teleoceras sp. Hatcher 1894 rhinoceros
Aphelops cf. mutilus Matthew 1924 rhinoceros | |
Neohipparion cf. eurystyle Cope 1893 hipparionine horse
Nannippus lenticularis Cope 1893 hipparionine horse
Dinohippus sp. Quinn 1955 horse | |
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Pediomeryx sp. Stirton 1936 ruminant | |
Antilocapridae indet. Gray 1866 pronghorn | |
Platygonus sp. Leconte 1848 peccary | |
"Hemiauchenia cf. vera" = Pleiolama vera, Megacamelus cf. merriami
"Hemiauchenia cf. vera" = Pleiolama vera Matthew 1909 camel
Megacamelus cf. merriami Frick 1921 camel | |
"Lynx cf. rexroadensis" = Felis rexroadensis1
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Vulpes sp. Frisch 1775 fox
Canis cf. lepophagus Johnston 1938 canine | |
Agriotherium sp. Wagner 1837 bear | |
Trigonictis sp., Sminthosinis sp., Lontra sp.1, Mustela cf. rexroadensis, Pliotaxidea garberi, Martes sp., Plesiogulo cf. lindsayi
Trigonictis sp. Hibbard 1941 mustelid carnivore
Sminthosinis sp. Bjork 1970 mustelid carnivore
Mustela cf. rexroadensis Hibbard 1950 weasel
Pliotaxidea garberi Wagner 1976 badger
Plesiogulo cf. lindsayi Harrison 1981 mustelid carnivore | |
Brachyopsigale cf. dubius Hibbard 1954 skunk
Buisnictis schoffi Hibbard 1954 skunk
Martinogale alveodens Hall 1930 skunk | |
cf. Parascalops sp. True 1894 mole
cf. Scalopoides sp. Wilson 1960 mole | |
cf. Petenyia sp. Kormos 1934 red-toothed shrew
Paracryptotis sp. Hibbard 1950 red-toothed shrew | |
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Paronychomys sp. Jacobs 1977 mouse
Repomys gustelyi May 1981 mouse
Neotoma cf. sawrockensis Hibbard 1967 pack rat
Baiomys sp. True 1894 pygmy mouse | |
Thomomys sp. Wied-Neuwied 1839 pocket gopher | |
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Castor cf. californicus Kellogg 1911 beaver
Dipoides sp. Jaeger 1835 beaver | |
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Spermophilus cf. shotwelli, Spermophilus cf. matthewi, "Marmota vetus" = Arctomys vetus, Paenemarmota sawrockensis
Spermophilus cf. shotwelli Black 1963 ground squirrel
Spermophilus cf. matthewi Black 1963 ground squirrel
"Marmota vetus" = Arctomys vetus Marsh 1871 marmot
Paenemarmota sawrockensis Hibbard 1964 squirrel | |
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Hypolagus regalis Hibbard 1939 rabbit
Hypolagus ringoldensis Gustafson 1978 rabbit | |
Megalonyx cf. curvidens Matthew 1924 edentate | |
Amphibia | |
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