Sand Canyon Quarry (Miocene of the United States)
Where: Dawes County, Nebraska (42.8° N, 103.1° W: paleocoordinates 43.5° N, 99.2° W)
• coordinate based on political unit
• small collection-level geographic resolution
When: Red Valley Member (Box Butte Formation), Hemingfordian (20.4 - 16.0 Ma)
Environment/lithology: terrestrial
Primary reference: T. Galusha. 1975. Stratigraphy of the Box Butte Formation, Nebraska. Bulletin of the American Museum of Natural History 156(1) [J. Alroy/J. Alroy/J. Ju]more details
PaleoDB collection 17991: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
• "40 specimens"
Runningwater Fm., Red Valley Mbr., and Dawes Clay Mbr. all are superposed in the canyon: fig. 8 "Merychyus verrucomalus" Stevens 1970 from two coordinates on Sand Canyon; I presume these are from the Runningwater
"Metatomarctus canavus" Wang et al. 1999: "Sand Canyon Region"
"Brachycrus cf. wilsoni" of Schultz and Falkenbach 1940 is from "the upper part of the section in this canyon" (Dawes Clay?); Schultz and Falkenbach 1940 also list Merycochoerus sp. - and Schultz and Falkenbach 1941 "Ticholeptus hypsodus" - but these are of unstated provenance
Runningwater Fm., Red Valley Mbr., and Dawes Clay Mbr. all are superposed in the canyon: fig. 8 "Merychyus verrucomalus" Stevens 1970 from two coordinates on Sand Canyon; I presume these are from the Runningwater
"Metatomarctus canavus" Wang et al. 1999: "Sand Canyon Region"
"Brachycrus cf. wilsoni" of Schultz and Falkenbach 1940 is from "the upper part of the section in this canyon" (Dawes Clay?); Schultz and Falkenbach 1940 also list Merycochoerus sp. - and Schultz and Falkenbach 1941 "Ticholeptus hypsodus" - but these are of unstated provenance
Show authors, comments, and common names
Mammalia | |
Phlaocyon leucosteus4 Matthew 1899 bone-crushing dog "possibly reworked from the Runningwater Formation"
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Miomustela sp. Hall 1930 mustelid carnivore | |
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Bouromeryx sp. Skinner et al. 1977 ruminant | |
Archaeohippus sp. Gidley 1906 anchitheriine horse | |
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