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1 September 1977
Article Contents
Index Terms/Descriptors
- Arikareean
- Barstovian
- Brule County South Dakota
- Cenozoic
- Chordata
- Eutheria
- Fremont County Wyoming
- Gregory County South Dakota
- Hemingfordian
- Keya Paha County Nebraska
- lower Miocene
- Mammalia
- Miocene
- morphology
- Nebraska
- Neogene
- Oligocene
- Paleogene
- paleontology
- Pliocene
- Rodentia
- Shannon County South Dakota
- South Dakota
- taxonomy
- Tertiary
- Tetrapoda
- Theria
- United States
- Valentine Formation
- Vertebrata
- Wyoming
- Zapodidae
- Batesland Formation
- Rosebud Formation
- Harrison Formation
- Split Rock Formation
- Thin Elk Formation
- Monroe Creek Formation
- Fort Randall Formation
- Plesiosminthus
- Macrognathomys gemmacollis
- Megasminthus
Latitude & Longitude
