Cottonwood Pass (Lower Nodular Zone) (Oligocene of the United States)
Also known as Collections VII, VIII, and IX; Near Stream Facies
Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.4° N, 94.3° W)
• coordinate based on political unit
When: Scenic Member (Brule Formation), Orellan (33.9 - 33.3 Ma)
• Lower Nodular Zone
• member-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: J. Damuth. 1982. Analysis of the Preservation of Community Structure in Assemblages of Fossil Mammals. Paleobiology 8(4):434-446 [J. Alroy/J. Alroy/J. Ju]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 17094: authorized by John Alroy, entered by John Alroy on 18.10.1995, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
• Damuth collection is entirely from an area of less than 1 square mile "in the upper half of the stratigraphic section": Clark and Kietzke 1967; NISP 481
possibly relevant: Parictis sp. Hunt 1998a: "Scenic Member... Cottonwood Pass area, Washabaugh County"
"Paratylopus sp." is omitted by Clark and Kietzke 1967 and of uncertain status in any case
possibly relevant: Parictis sp. Hunt 1998a: "Scenic Member... Cottonwood Pass area, Washabaugh County"
"Paratylopus sp." is omitted by Clark and Kietzke 1967 and of uncertain status in any case
Show authors, comments, and common names
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| Reptilia | |
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| Mammalia | |
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Subhyracodon sp. Wood 1927 rhinoceros includes "Caenopus sp."; Damuth indicates there are two size classes
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"Colodon dakotensis" = Colodon occidentalis
"Colodon dakotensis" = Colodon occidentalis Leidy 1868 tapir | |
"Mesohippus bairdii" = Mesohippus bairdi
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Archaeotherium wanlessi Sinclair 1922 even-toed ungulate
Archaeotherium mortoni Leidy 1850 even-toed ungulate | |
"Bothriodon rostratus" = Aepinacodon rostratus, Heptacodon occidentalis
"Bothriodon rostratus" = Aepinacodon rostratus Scott 1894 anthracothere | |
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Agriochoerus antiquus Leidy 1850 agriochoerid | |
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Hypertragulus calcaratus Cope 1873 ruminant | |
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Leptomeryx evansi Leidy 1853 ruminant | |
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Perchoerus nanus Marsh 1894 peccary | |
Miniochoerus affinis3, Miniochoerus gracilis, "Merycoidodon culbertsoni" = Merycoidodon culbertsonii, "Paramerycoidodon georgei n. sp." = Merycoidodon culbertsonii4
Miniochoerus affinis3 Leidy 1869 oreodont includes their "M. battlecreekensis"; "Cottonwood Pass area" Shannon Co., Brule Zone A
Miniochoerus gracilis Leidy 1851 oreodont
"Merycoidodon culbertsoni" = Merycoidodon culbertsonii Leidy 1848 oreodont additional specimens of Schultz and Falkenbach 1968 are from 1/2 mi N, 1 mi N, 1 1/2 mi N, N side, S side, 1 mi S, 1 1/2 mi S, and 1 mi E of Cottonwood Pass; also their "M. culbertsoni osborni" from 1 mi E of Cottonwood Pass; "Paramerycoidodon georgei" type from "1 1/2 mi. S of Cottonwood Pass"; also "1 mi. N."; "1-1 1/2 mi. S." of Cottonwood Pass; "Genetochoerus periculorum" from "Cottonwood Creek" (PU specimen); "1 mi. N." and "1 1/2 mi. S." of Cottonwood Pass; all Brule Zone A
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Poebrotherium wilsoni Leidy 1847 camel includes "P. andersoni" of Sinclair 1924 from "lower concretionary zone in the west part of the Indian Creek basin, near the pass into Little Corral Draw, Washington County" - i.e., Cottonwood Pass; and F:AM specimens of Prothero 1996d
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"Parictis cf. dakotensis" = Subparictis dakotensis1
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Eumys elegans Leidy 1856 mouse | |
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Ischyromys typus Leidy 1856 rodent | |
Adjidaumo minutus, "Paradjidaumo trilophus" = Adjidaumo trilophus
Adjidaumo minutus Cope 1873 rodent | |
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Eutypomys thomsoni Matthew 1905 rodent | |
"Prosciurus relictus" = Altasciurus relictus
"Prosciurus relictus" = Altasciurus relictus Cope 1873 mountain beaver omitted by Clark and Kietzke 1967
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Palaeolagus haydeni Leidy 1856 rabbit | |
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| Amphibia | |
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