Upper Nodular Zone (1892 AMNH Collection) (Oligocene of the United States)

Where: Pennington and Scenic County, South Dakota (43.9° N, 102.5° W: paleocoordinates 45.0° N, 94.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

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

Environment/lithology: terrestrial

Reposited in the AMNH

Primary reference: H. F. Osborn and J. L. Wortman. 1894. Fossil mammals of the Lower Miocene White River beds. Collection of 1892. Bulletin of the American Museum of Natural History 6(7):199-228 [J. Alroy/J. Alroy/M. Carrano]more details

PaleoDB collection 17295: authorized by John Alroy, entered by John Alroy on 18.10.1995

Creative Commons license: CC BY (attribution)

Taxonomic list

• based on Osborn 1937, this is mostly from Indian Creek, Corral Draw, and Quinn Draw
Mammalia
 Leptictida - Leptictidae
Leptictis haydeni Leidy 1868 eutherian
 Rodentia - Ischyromyidae
Ischyromys typus Leidy 1856 rodent
 Lagomorpha - Leporidae
Palaeolagus haydeni Leidy 1856 rabbit
 Perissodactyla - Amynodontidae
Metamynodon sp. Scott and Osborn 1887 odd-toed ungulate
 Perissodactyla - Hyracodontidae
Hyracodon sp. Leidy 1856 odd-toed ungulate
 Perissodactyla - Rhinocerotidae
Subhyracodon occidentalis Leidy 1850 rhinoceros
 Carnivora - Amphicyonidae
Daphoenus sp. Leidy 1853 bear-dog
 Carnivora - Nimravidae
Dinictis felina Leidy 1854 false sabre-tooth
Hoplophoneus primaevus Leidy and Owen 1851 false sabre-tooth
 Ungulata - Merycoidodontidae
"Merycoidodon bullatus" = Merycoidodon (Otarohyus) bullatus
"Merycoidodon bullatus" = Merycoidodon (Otarohyus) bullatus Leidy 1869 oreodont
 Ungulata - Camelidae
Poebrotherium wilsoni Leidy 1847 camel
 Ungulata - Leptomerycidae
Leptomeryx evansi Leidy 1853 ruminant
 Hyaenodonta - Hyaenodontidae
Hyaenodon horridus Leidy 1853 eutherian
Hyaenodon crucians Leidy 1853 eutherian