Palmer Creek (Channel Facies) (Oligocene of the United States)

Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.3° N, 95.0° W)

• coordinate based on political unit

When: Poleslide Member (Brule Formation), Whitneyan (33.3 - 30.8 Ma)

Environment/lithology: terrestrial

Primary reference: R. W. Wilson. 1985. The Dentition of the Paleocene "Insectivore" Genus Acmeodon Matthew and Granger (?Palaeoryctidae, Mammalia). Journal of Paleontology 59(3):713-720 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 17359: authorized by John Alroy, entered by John Alroy on 30.04.1994

Creative Commons license: CC BY (attribution)

Taxonomic list

• this clearly is equivalent to the Protoceras Beds, but there is no explicit discussion of the issue

list does include all common taxa
Show authors, comments, and common names
Mammalia
 Perissodactyla - Hyracodontidae
Hyracodon sp.
Hyracodon sp. Leidy 1856 odd-toed ungulate
 Perissodactyla - Rhinocerotidae
Subhyracodon sp.
Subhyracodon sp. Wood 1927 rhinoceros
 Perissodactyla - Tapiridae
Tapiridae indet.
Tapiridae indet. Gray 1821 tapir
 Artiodactyla - Entelodontidae
Entelodontidae indet.
Entelodontidae indet. Lydekker 1883 even-toed ungulate
 Artiodactyla - Anthracotheriidae
Anthracotheriidae indet.
Anthracotheriidae indet. Leidy 1869 anthracothere
 Artiodactyla - Protoceratidae
Protoceras sp.
Protoceras sp. Marsh 1891 protoceratid
 Artiodactyla - Leptomerycidae
Leptomeryx sp.
Leptomeryx sp. Leidy 1853 ruminant
 Artiodactyla - Leptochoeridae
Leptochoeridae indet.
Leptochoeridae indet. Marsh 1894 even-toed ungulate
 Artiodactyla - Tayassuidae
Tayassuidae indet.
Tayassuidae indet. Palmer 1897 peccary
 Rodentia - Castoridae
Agnotocastor sp.
Agnotocastor sp. Stirton 1935 beaver
 Lagomorpha - Leporidae
Palaeolagus sp.
Palaeolagus sp. Leidy 1856 rabbit