Also known as basal Unit B
Where: Trego County, Kansas (39.1° N, 99.8° W: paleocoordinates 40.3° N, 97.2° W)
• 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: CC BY (attribution)
Taxonomic list
Actinopteri | |
Amia calva Linnaeus 1766 bowfin | |
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Fundulus sp. Lacépède 1803 | |
Aplodinotus cf. grunniens Rafinesque 1819 freshwater drum | |
? Notropis sp. Rafinesque 1818 carp-like fish | |
Ictiobus sp. Alvarado-Ortega et al. 2006 carp-like fish | |
Ictalurus lambda catfish | |
Reptilia | |
Eumeces hixsonorum n. sp.8
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Gerrhonotus mungerorum n. sp. alligator lizard | |
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Colubridae indet.8, cf. Paleoheterodon sp., Paleoheterodon sp.8, "Natrix hillmani" = Nerodia hillmani, Colubrinae indet.8, Lampropeltis similis8, Elaphe sp.8, Texasophis wilsoni n. sp.9, Thamnophis sp.
cf. Paleoheterodon sp. Holman 1964 colubrid snake
"Natrix hillmani" = Nerodia hillmani Wilson 1968 water snake
Thamnophis sp. Fitzinger 1843 garter snake | |
Ogmophis pliocompactus n. sp.8
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Tregophis brevirachis n. gen. n. sp.8
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Aves | |
Pliopicus brodkorbi n. gen. n. sp.
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Nettion ogallalae n. sp.4
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Ortalis affinis n. sp.
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Reptilia | |
"Chelonia indet." = Testudines8
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Mammalia | |
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"Tamiini indet." = Marmotini1
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"Zapodinae indet." = Zapodidae Coues 1875 jumping mouse
? Sicistinae indet. Allen 1901 jumping mouse | |
Cricetidae indet., Cricetidae indet.1, cf. Copemys sp., "Tregomys pisinnus" = Copemys pisinnus1, "Tregomys shotwelli n. gen. n. sp." = Copemys shotwelli
Cricetidae indet. Fischer von Waldheim 1817 mouse
cf. Copemys sp. Wood 1936 mouse
"Tregomys shotwelli n. gen. n. sp." = Copemys shotwelli Wilson 1968 mouse includes type of "Gnomomys saltus"; (8+18)
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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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"Phelosaccomys hibbardi" = Parapliosaccomys hibbardi11
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Talpidae indet., Domninoides mimicus n. sp.
Talpidae indet. Fischer de Waldheim 1817 mole | |
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Canidae indet. Fischer de Waldheim 1817 canid | |
Martes stirtoni n. sp. Wilson 1968 marten | |
Proboscidea indet. proboscidean | |
Amphibia | |
Tregobatrachus hibbardi n. gen. n. sp.8
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Rana cf. areolata frog
Rana sp. Linnaeus 1758 frog | |
Acris sp., Pseudacris cf. clarki, Hyla sp., Hyla cf. gratiosa, Hyla cf. cinerea8, Hyla cf. squirella8
Acris sp. Dumeril and Bibron 1841 cricket frog
Pseudacris cf. clarki Baird 1854 spotted chorus frog
Hyla cf. gratiosa Le Conte 1856 barking treefrog | |
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