Arctonasua is an extinct genus of raccoon-like Procyonidae of the Miocene, endemic to North America.[ Arctonasua at fossilworks] It lived from ~16.0—4.9 Mya, existing for approximately .
Species
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A. eurybates Baskin, 1982 - Sioux County, Nebraska, estimated age: ~10.5 Ma.
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A. floridana Baskin, 1982 - Alachua County, Florida, estimated age: ~11.5 Ma.
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A. fricki Baskin, 1982 - Texas County, Oklahoma, estimated age: ~8.4 Ma.
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A. gracilis Baskin, 1982 - Brown County, Nebraska and San Jacinto County, Texas, estimated age: ~8.4 Ma.
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A minima Baskin, 1982 - Dawes County, Nebraska, estimated age: ~17.1 Ma.
