Where: Scurry County, Texas (32.7° N, 100.9° W: paleocoordinates 32.8° N, 100.3° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Blancan (4.9 - 1.8 Ma)
• from a single bed that is 11 feet thick in a nearby measured section
• bed-level stratigraphic resolution
Environment/lithology: fluvial; pebbly sandstone
Size classes: macrofossils, mesofossils
Collection methods: bulk, sieve,
• "50 tons of fossil-bearing matrix collected for screen washing"
Primary reference: W. W. Dalquest. 1978. Early Blancan mammals of the Beck Ranch local fauna of Texas. Journal of Mammalogy 59(2):269-298 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 20060: authorized by John Alroy, entered by John Alroy on 18.02.1993, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
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Perognathus carpenteri n. sp., Perognathus cf. rexroadensis, Perognathus pearlettensis, Prodipodomys centralis
Perognathus carpenteri n. sp. Dalquest 1978 pocket mouse
Perognathus cf. rexroadensis Hibbard 1950 pocket mouse
Perognathus pearlettensis Hibbard 1941 pocket mouse
Prodipodomys centralis Hibbard 1941 rodent | |
Onychomys gidleyi, Symmetrodontomys simplicidens, Symmetrodontomys beckensis1, Neotoma cf. fossilis8, Neotoma quadriplicata, Ogmodontomys poaphagus, Reithrodontomys cf. rexroadensis, Peromyscus kansasensis, "Sigmodon medius" = Sigmodon minor, Baiomys rexroadi
Onychomys gidleyi Hibbard 1941 grasshopper mouse
Symmetrodontomys simplicidens Hibbard 1941 mouse
Neotoma quadriplicata Hibbard 1941 pack rat
Ogmodontomys poaphagus Hibbard 1941 mouse
Reithrodontomys cf. rexroadensis Hibbard 1952 harvest mouse
Peromyscus kansasensis Hibbard 1941 deer mouse
"Sigmodon medius" = Sigmodon minor Gidley 1922 cotton rat
Baiomys rexroadi Hibbard 1941 pygmy mouse | |
Spermophilus sp. Cuvier 1825 ground squirrel | |
Pewelagus dawsonae6, Notolagus lepusculus, Hypolagus regalis, Hypolagus ringoldensis6, Pratilepus kansasensis, Alilepus wilsoni7, Nekrolagus progressus
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Antilocapridae indet. Gray 1866 pronghorn | |
Hemiauchenia sp. Gervais and Ameghino 1880 camel | |
Platygonus bicalcaratus Cope 1893 peccary | |
"Equus cf. cumminsii" = Equus (Asinus) cumminsi, "Equus cf. simplicidens" = Plesippus simplicidens2, Nannippus beckensis n. sp.2
"Equus cf. cumminsii" = Equus (Asinus) cumminsi Cope 1893 horse | |
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"Lynx rexroadensis" = Felis rexroadensis5
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Taxidea cf. taxus Schreber 1778 American badger
Mustela rexroadensis Hibbard 1950 weasel | |
Buisnictis breviramus Hibbard 1941 skunk
? Spilogale rexroadi Hibbard 1941 skunk
? Spilogale microdens Dalquest 1978 skunk
Brachyopsigale dubius Hibbard 1954 skunk | |
Nasua pronarica n. sp., Bassariscus casei
Nasua pronarica n. sp. Dalquest 1978 coati
Bassariscus casei Hibbard 1952 ringtail | |
Sorex taylori Hibbard 1937 long-tailed shrew
Notiosorex jacksoni Hibbard 1950 gray shrew
Beckiasorex hibbardi Dalquest 1972 red-toothed shrew
Paracryptotis rex Hibbard 1950 red-toothed shrew | |
"Hesperoscalops rexroadi" = Scalopus rexroadi1
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Proboscidea indet. proboscidean | |
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