Also known as basal Unit B
Where: Trego County, Kansas (39.1° N, 99.8° W)
• Paleocoordinates: 41.7° N, 94.8° W (Wright 2013)
• coordinate stated in text
• small collection-level geographic resolution
When: Ogallala Formation, Clarendonian (12.5 - 9.4 Ma)
• from a bed about 1 - 2 feet thick; overlies Locality 29 (see)
• bed-level stratigraphic resolution
Environment/lithology: "channel"; unlithified sandstone and green claystone
Size classes: macrofossils, mesofossils
Collection methods: bulk, surface (float), sieve,
Primary reference: R. L. Wilson. 1968. Systematics and faunal analysis of a Lower Pliocene vertebrate assemblage from Trego County, Kansas. Contributions from the Museum of Paleontology, University of Michigan 22(7):75-126 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 18450: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Richard Hulbert
Creative Commons license: CC0 (CC0)
Taxonomic list
Amphibia | |
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Pseudacris cf. clarki, Hyla sp., Hyla cf. squirella8, Hyla cf. gratiosa, Hyla cf. cinerea8, Acris sp.
Pseudacris cf. clarki Baird 1854 spotted chorus frog
Hyla cf. gratiosa Le Conte 1856 barking treefrog
Acris sp. Dumeril and Bibron 1841 cricket frog | |
Rana cf. areolata frog
Rana sp. Linnaeus 1758 frog | |
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Tregobatrachus hibbardi n. gen. n. sp.8
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Mammalia | |
Proboscidea indet. proboscidean | |
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Tregosorex holmani n. sp.7, Anchiblarinella wakeeneyensis n. sp.7, Parydrosorex concisus n. gen. n. sp.
Parydrosorex concisus n. gen. n. sp. Wilson 1968 shrew | |
Talpidae indet., Domninoides mimicus n. sp.
Talpidae indet. Fischer de Waldheim 1817 mole | |
Canidae indet. Fischer de Waldheim 1817 canid | |
Martes stirtoni n. sp. Wilson 1968 marten | |
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"Tamiini indet." = Marmotini1
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"Epigaulus minor" = Ceratogaulus minor
"Epigaulus minor" = Ceratogaulus minor Hibbard and Phillis 1945 rodent | |
Cricetidae indet., Cricetidae indet.1, cf. Copemys sp., Copemys pisinnus n. sp., "Tregomys shotwelli n. gen. n. sp." = Copemys shotwelli
Cricetidae indet. Fischer von Waldheim 1817 rodent
cf. Copemys sp. Wood 1936 rodent
Copemys pisinnus n. sp. Wilson 1968 rodent
"Tregomys shotwelli n. gen. n. sp." = Copemys shotwelli Wilson 1968 rodent includes type of "Gnomomys saltus"; (8+18)
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"Zapodinae indet." = Zapodidae Coues 1875 jumping mouse
? Sicistinae indet. Allen 1901 jumping mouse | |
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"Phelosaccomys hibbardi" = Parapliosaccomys hibbardi11
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"Eucastor phillisi n. sp." = Prodipoides phillisi
"Eucastor phillisi n. sp." = Prodipoides phillisi Wilson 1968 beaver referred, includes "E. cf. tortus" of Hibbard and Phillis 1945; NISP about 19
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Reptilia | |
Gerrhonotus mungerorum n. sp. alligator lizard | |
Tregophis brevirachis n. gen. n. sp.8
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Ogmophis kansasensis n. sp. Wilson 1968 Mexican burrowing snake | |
Thamnophis sp., cf. Paleoheterodon sp., Paleoheterodon sp.8, Colubrinae indet.8, Texasophis wilsoni n. sp.9, Elaphe sp.8, Lampropeltis similis8, ? Coluber plioagellus n. sp., "Natrix hillmani" = Nerodia hillmani
Thamnophis sp. Fitzinger 1843 garter snake
cf. Paleoheterodon sp. Holman 1964 colubrid snake
? Coluber plioagellus n. sp. Wilson 1968 racer
"Natrix hillmani" = Nerodia hillmani Wilson 1968 water snake | |
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Eumeces hixsonorum n. sp.8
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Aves | |
Nettion ogallalae n. sp.4
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Pliopicus brodkorbi n. gen. n. sp.
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Reptilia | |
Ortalis affinis n. sp.
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"Chelonia indet." = Testudines8
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Actinopteri | |
Amia calva Linnaeus 1766 bowfin | |
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Aplodinotus cf. grunniens Rafinesque 1819 freshwater drum | |
Fundulus sp. Lacépède 1803 | |
Ictalurus lambda catfish | |
? Notropis sp. Rafinesque 1818 carp-like fish | |
Ictiobus sp. Alvarado-Ortega et al. 2006 carp-like fish |