Also known as UNSM Wt-15A
Where: Webster County, Nebraska (40.0° N, 98.5° W: paleocoordinates 40.8° N, 95.3° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Valentine Formation, Barstovian (16.3 - 12.5 Ma)
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Reposited in the UNSM
Collection methods: bulk, sieve
Primary reference: J. A. Holman. 1977. Upper Miocene snakes (Reptilia, Serpentes) from Southeastern Nebraska. Journal of Herpetology 11(3):323-335 [J. Head/J. Head/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 18275: authorized by John Alroy, entered by John Alroy on 05.08.1992, edited by Jason Head
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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"Macroclemys sp." = Macrochelys3
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"cf. Crotalinae sp." = Crotalidae
"cf. Crotalinae sp." = Crotalidae Oppel 1811 pit viper "Three fangs, 2 cervical, and 12 trunk vertebrae, UNSM 46508"
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Salvadora paleolineata, Elaphe nebraskensis, Nebraskophis skinneri, cf. Thamnophis sp., Neonatrix elongata, Paleoheterodon tiheni
Salvadora paleolineata Holman 1973 colubrid snake "One hundred and forty-four trunk vertebrae, UNSM 46500; and 19 trunk vertebrae from a single large individual, UNSM 46501,"
Elaphe nebraskensis Holman 1964 colubrid snake "Forty trunk vertebrae, UNSM 46505; and vertebrae and ribs from a small individual in a block of matrix, UNSM 46512"
Paleoheterodon tiheni Holman 1964 colubrid snake "A large portion of a single individual, UNSM 46504..; and 22 vertebrae, probably from another single individual, UNSM 46513"
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Mammalia | |
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"Gomphotherium cf. willistoni" = Trilophodon osborni1
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Monosaulax pansus10, Eucastor tortus10, Temperocastor valentinensis8, Hystricops sp.10, Anchitheriomys sp.10
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Anchitheriinae indet.1, Hypohippus osborni10, Parahippus cognatus10, Calippus placidus10, Hipparionini indet.1
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"Longirostromeryx blicki" = Longirostromeryx wellsi10
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"Prosthennops xiphodonticus" = Stirtonhyus xiphodonticus1
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"Merychyus medius" = Ustatochoerus medius1
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