Peanut Peak (Eocene of the United States)
Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.6° N, 93.7° W)
• coordinate based on political unit
When: Peanut Peak Member (Chadron Formation), Chadronian (37.2 - 33.9 Ma)
Environment/lithology: terrestrial
Primary reference: J. Clark and J. R. Beerbower. 1967. Geology, paleoecology, and paleoclimatology of the Chadron Formation. Fieldiana 5(5):21-74 [J. Alroy/J. Alroy/J. Alroy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 17006: authorized by John Alroy, entered by John Alroy on 18.02.1993
Creative Commons license: CC BY (attribution)
Taxonomic list
• "upper Chadron" or "Upper Titanotherium Beds" records are retained here because the Peanut Peak is present wherever the lower members outcrop
Wood 1927 mentions a specimen from "the Upper Tianotherium Beds, Cane Creek, South Dakota" that he compares to Amphicaenopus platycephalum
Wood 1927 mentions a specimen from "the Upper Tianotherium Beds, Cane Creek, South Dakota" that he compares to Amphicaenopus platycephalum
Show authors, comments, and common names
| Mammalia | |
"Ictops dakotensis" = Leptictis dakotensis
"Ictops dakotensis" = Leptictis dakotensis Leidy 1868 eutherian | |
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Apternodus mediaevus Matthew 1903 placental | |
Archaeotherium scotti n. sp.
Archaeotherium scotti n. sp. Sinclair 1922 even-toed ungulate | |
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Aepinacodon deflectus n. sp.4 Marsh 1890 anthracothere discussed by Troxell 1921a without indication of exact level
Aepinacodon americanus n. sp.4 Leidy 1856 anthracothere this and the next record surely include "Bothriodon sp." because Clark would have followed Scott's taxonomy
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Hypertragulidae indet. Cope 1879 ruminant | |
"Poabromylus minor" = Pseudoprotoceras minor, "Leptotragulus profectus" = Trigenicus profectus
"Poabromylus minor" = Pseudoprotoceras minor Wilson 1974 protoceratid
"Leptotragulus profectus" = Trigenicus profectus Matthew 1903 protoceratid | |
"Merycoidodon lewisi n. sp." = Merycoidodon culbertsonii
"Merycoidodon lewisi n. sp." = Merycoidodon culbertsonii Leidy 1848 oreodont | |
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Brontotheriidae indet.1, "Brontotherium curtum" = Megacerops curtus, Brontops robustus n. sp.5, "Allops serotinus n. sp." = Menops serotinus, "Megacerops marshi n. sp." = Menops marshi
"Brontotherium curtum" = Megacerops curtus Marsh 1887 brontothere
Brontops robustus n. sp.5 Marsh 1887 brontothere from "upper Titanotherium zone... Corral Draw"; also skeleton of "Titanotherium robustum" Osborn and Wortman 1895 from "upper Titanotherium beds... near the head of Corral Canon"
"Allops serotinus n. sp." = Menops serotinus Marsh 1887 brontothere
"Megacerops marshi n. sp." = Menops marshi Osborn 1902 brontothere | |
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Mesohippus exoletus6 Cope 1874 anchitheriine horse 5 ft below top of Chadron, Red Shirt Table, Shannon Co.
"Mesohippus grandis n. sp." = Miohippus grandis Clark and Beerbower 1967 anchitheriine horse | |
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Hyracodon cf. priscidens Lambe 1905 odd-toed ungulate | |
"Aceratherium trigonodum n. sp." = Subhyracodon occidentalis, "Caenopus mitis" = Subhyracodon mitis, "Trigonias wellsi n. sp." = Trigonias wellsi8, "Trigonias gregoryi n. sp." = Trigonias wellsi
"Aceratherium trigonodum n. sp." = Subhyracodon occidentalis Leidy 1850 rhinoceros
"Caenopus mitis" = Subhyracodon mitis Cope 1875 rhinoceros
"Trigonias wellsi n. sp." = Trigonias wellsi8 Wood 1927 rhinoceros from "Upper Titanotherium Beds, Corral Draw"
"Trigonias gregoryi n. sp." = Trigonias wellsi Wood 1927 rhinoceros | |
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Hoplophoneus oharrai n. sp. Jepsen 1926 false sabre-tooth | |
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"Daphoenocyon dodgei" = Brachyrhynchocyon dodgei Scott 1898 bear-dog | |
Mustelavus priscus n. sp.
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Parictis major n. sp.2
Parictis major n. sp.2 Clark and Guensburg 1972 bear NE 1/4 SE 1/4 sec 12 T42N R45W Shannon Co.; placed in this mbr. by Baskin and Tedford 1996
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"Parictis dakotensis n. sp." = Subparictis dakotensis
"Parictis dakotensis n. sp." = Subparictis dakotensis Clark 1936 carnivoran see Clark and Guensburg 1972: from "probably Peanut Peak Member, Big Corral Draw, Washington (now Shannon) County"
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Hesperocyon gregarius Cope 1873 canid | |
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Hyaenodon cf. montanus Douglass 1902 creodont | |