Harris Ranch Unit D (Oligocene of the United States)

Where: Fall River County, South Dakota (43.2° N, 103.2° W: paleocoordinates 44.2° N, 95.7° W)

• coordinate based on political unit

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

• member-level stratigraphic resolution

Environment/lithology: terrestrial

Primary reference: W. F. Simpson. 1985. Geology and paleontology of the Oligocene Harris Ranch Badlands, southwestern South Dakota. Dakoterra 2(2):303-333 [J. Alroy/J. Alroy/J. Marcot]more details

PaleoDB collection 17338: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Rodentia - Heliscomyidae
? Heliscomys sp.
? Heliscomys sp. Cope 1873 rodent
 Rodentia - Castoridae
Castoridae indet.
Castoridae indet. Gray 1821 beaver
 Rodentia - Eutypomyidae
Eutypomyidae indet.1
Eutypomyidae indet.1 Miller and Gidley 1918 rodent
 Rodentia - Allomyidae
? Haplomys sp.
? Haplomys sp. Miller and Gidley 1918 rodent
 Rodentia - Sciuridae
Sciuridae indet.
Sciuridae indet. Gray 1821 squirrel
 Rodentia - Aplodontidae
Aplodontidae indet.1, ? Prosciurinae indet.
Aplodontidae indet.1 Brandt 1855 mountain beaver
? Prosciurinae indet. Wilson 1949 mountain beaver
 Rodentia - Cricetidae
Eumys sp.
Eumys sp. Leidy 1856 rodent
 Rodentia - Florentiamyidae
"Proheteromys nebraskensis" = Kirkomys nebraskensis
"Proheteromys nebraskensis" = Kirkomys nebraskensis Wood 1937 rodent
 Lagomorpha - Leporidae
Palaeolagus burkei, Palaeolagus haydeni, ? Palaeolagus intermedius, Megalagus turgidus
Palaeolagus burkei Schlaikjer 1935 rabbit
Palaeolagus haydeni Leidy 1856 rabbit
? Palaeolagus intermedius Matthew 1899 rabbit
Megalagus turgidus Cope 1873 rabbit
 Perissodactyla - Hyracodontidae
Hyracodon leidyanus2
Hyracodon leidyanus2 Troxell 1921 odd-toed ungulate
 Perissodactyla - Equidae
? Miohippus sp.
? Miohippus sp. Marsh 1874 anchitheriine horse
 Artiodactyla - Leptochoeridae
Leptochoerus sp.
Leptochoerus sp. Leidy 1856 even-toed ungulate
 Artiodactyla - Merycoidodontidae
Leptauchenia decora, ? Merycoidodon sp., ? Merycoidodon cf. bullatus, Miniochoerus cf. starkensis1
Leptauchenia decora Leidy 1856 oreodont
includes "L. cf. harveyi"
? Merycoidodon sp. Leidy 1848 oreodont
small
? Merycoidodon cf. bullatus Leidy 1869 oreodont
Miniochoerus cf. starkensis1 Schultz and Falkenbach 1956 oreodont
 Artiodactyla -
Leptochoerinae indet.
Leptochoerinae indet. even-toed ungulate
 Artiodactyla - Leptomerycidae
Leptomeryx cf. evansi1
Leptomeryx cf. evansi1 Leidy 1853 ruminant
 Artiodactyla - Hypertragulidae
Hypertragulus cf. calcaratus
Hypertragulus cf. calcaratus Cope 1873 ruminant
 Artiodactyla - Tayassuidae
Tayassuidae indet.1
Tayassuidae indet.1 Palmer 1897 peccary
 Carnivora - Canidae
Hesperocyon sp., Oxetocyon sp.
Hesperocyon sp. Scott 1890 canid
Oxetocyon sp. Green 1954 bone-crushing dog
 Creodonta - Hyaenodontidae
Hyaenodon sp.
Hyaenodon sp. Laizer and Parieu 1838 creodont
 Soricomorpha - Proscalopidae
Proscalops tertius
Proscalops tertius Reed 1961 placental
 Soricomorpha - Soricidae
Domnina gradata
Domnina gradata Cope 1873 shrew
 Tribosphenida - Erinaceidae
Proterix sp.
Proterix sp. Matthew 1903 hedgehog
 Tribosphenida - Herpetotheriidae
Herpetotherium cf. fugax
Herpetotherium cf. fugax Cope 1873 marsupial
1Alroy 2002; 2Prothero 1996