Also known as Crocodilian Locality B; UNSM Kx-110
Where: Knox County, Nebraska (42.5° N, 98.1° W: paleocoordinates 43.0° N, 94.8° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Crookston Bridge Member (Valentine Formation), Barstovian (16.0 - 13.6 Ma)
• "late Barstovian"
• bed-level stratigraphic resolution
Environment/lithology: fluvial; argillaceous conglomerate and sandstone
Size classes: macrofossils, mesofossils
Collected by M. R. Voorhies; reposited in the UNSM
Collection methods: bulk, sieve,
Primary reference: M. R. Voorhies. 1971. Paleoclimatic significance of crocodilian remains from the Ogallala Group (upper Tertiary) in northeastern Nebraska. Journal of Paleontology 45(1):119-121 [J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 18031: authorized by John Alroy, entered by John Alroy on 15.05.2002, edited by Chris Bell and Jason Head
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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Mammalia | |
"Gomphotherium cf. willistoni" = Trilophodon osborni1
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"Merychyus medius" = Ustatochoerus medius1
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"Tamiini indet." = Marmotini1
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Cupidinimus nebraskensis6, Mioheteromys amplissimus4, Perognathus trojectioansrum6, Perognathus brevidens6
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"Phelosaccomys annae" = Parapliosaccomys annae1
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"Copemys niobrariensis" = Copemys longidens6
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Amphibia | |
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Rana sp. Linnaeus 1758 frog | |
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Actinopteri | |
Lepisosteus sp. Agassiz 1843 gar | |
Aplodinotus sp. Rafinesque 1818 | |
Ictalurus sp. Rafinesque 1820 catfish |