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Showing 1 to 3 of 3 for “"Arikareean"”.
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The rise of modern mammalian faunas: tempo and mode of faunal turnover in western Montana during the Oligocene
… change. I use the fossil record of the Arikareean (ca. 30 to 25.5 Ma), which records a major environmental change concurrent with the rise of many mammalian taxa, to shed light on the link between environmental change, ecological filtering by habitat, and taxonomic turnover over …
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Stratigraphy and sedimentary history of middle Cenozoic (Oligocene and Miocene) deposits in North Dakota
… spanning Chadronian (early Oligocene) through Arikareean (early Miocene) times.</p> <p>The Chadron and Brule Formations of the White River Group are recognized in North Dakota. Proposed subdivision of these formations includes six new rock-stratigraphic units of bed and member rank. The name …
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Miocene herpetofaunas from the central Gulf Coast USA: their paleoecology, biogeography, and biostratigraphy
The late Barstovian Fort Polk herpetofauna represents the most diverse herpetofauna on the Gulf Coast, USA, and includes 15 genera from ten families. The herpetofaunal composition of Fort Polk and Miocene east Texas localities is similar enough to Great Plains localities that they are all …