Olcott Hill (Laucomer Member) (Miocene of the United States)

Also known as Olcott Hill Quarry: UNSM Sx-71

Where: Sioux County, Nebraska (42.4° N, 103.8° W: paleocoordinates 42.9° N, 101.2° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Laucomer Member (Snake Creek Formation), Clarendonian (12.5 - 9.4 Ma)

Environment/lithology: terrestrial

Reposited in the UNSM

Primary reference: M. F. Skinner, S. M. Skinner, and R. J. Gooris. 1977. Stratigraphy and biostratigraphy of late Cenozoic deposits in central Sioux County, western Nebraska. Bulletin of the American Museum of Natural History 158(5):263-370 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 18299: authorized by John Alroy, entered by John Alroy on 26.03.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• includes material of unclear provenance that actually may be from Hesperopithecus Site, Kilpatrick Quarry, or Olcott Quarry
Show authors, comments, and common names
Mammalia
 Megatherioidea - Megalonychidae
Megalonychidae indet.
Megalonychidae indet. Gervais 1855 edentate
 Carnivora - Amphicyonidae
Ischyrocyon sp.2
Ischyrocyon sp.2 Matthew and Gidley 1904 bear-dog
 Carnivora - Canidae
Aelurodon taxoides3, Epicyon saevus3, Epicyon haydeni3
Aelurodon taxoides3 Hatcher 1894 bone-crushing dog
"?Olcott Hill"; referred to "?Cuon sp." by Matthew and Cook 1909
Epicyon saevus3 Leidy 1858 bone-crushing dog
Epicyon haydeni3 Leidy 1858 bone-crushing dog
 Perissodactyla - Equidae
Hippotherium sp.1
Hippotherium sp.1 Kaup 1832 hipparionine horse
 Rodentia - Castoridae
Eucastor cf. tortus, Monosaulax pansus
Eucastor cf. tortus Leidy 1858 beaver
Monosaulax pansus Cope 1874 beaver
1Alroy 2002; 2Hunt 1998; 3Wang et al. 1999