Conata Picnic Ground (Oligocene of the United States)

Also known as Big Pig Dig

Where: Pennington County, South Dakota (43.9° N, 102.4° W: paleocoordinates 45.0° N, 94.2° W)

• coordinate based on political unit

When: Scenic Member (Brule Formation), Orellan (33.9 - 33.3 Ma)

• 6.4 m above base of formation

• bed-level stratigraphic resolution

Environment/lithology: terrestrial

Size class: macrofossils

Collection methods: quarrying,

• "Over 6,000 bones": Cavin et al. 2002

Primary reference: K. K. Stevens. 1995. Geological Society of America Abstracts with Programs 27(3):88 [J. Alroy/J. Alroy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 17089: authorized by John Alroy, entered by John Alroy on 19.05.2000

Creative Commons license: CC BY (attribution)

Taxonomic list

• see also Terry 1996

•"no bone transport" so MNI seems appropriate

Angiospermae
 Rosales - Ulmaceae
Celtis sp.1 Linnaeus 1753 hackberry
Mammalia
 Rodentia - Ischyromyidae
Ischyromys sp.1 Leidy 1856 rodent
 Perissodactyla - Rhinocerotidae
Subhyracodon sp. Wood 1927 rhinoceros
 Perissodactyla - Equidae
Mesohippus sp. Marsh 1875 anchitheriine horse
 Artiodactyla - Entelodontidae
Archaeotherium sp. Leidy 1850 even-toed ungulate
 Artiodactyla - Leptomerycidae
Leptomeryx sp.2 Leidy 1853 ruminant
 Artiodactyla - Merycoidodontidae
Merycoidodon sp.1 Leidy 1848 oreodont
 Carnivora - Nimravidae
Nimravidae indet.1 Cope 1880 false sabre-tooth