Aetiocetus is a genus of extinct baleen whale that lived 33.9 to 23.03 million years ago, in the Oligocene in the North Pacific, around Japan, Mexico, and Oregon, U.S.
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| - Aetiocetus is a genus of extinct baleen whale that lived 33.9 to 23.03 million years ago, in the Oligocene in the North Pacific, around Japan, Mexico, and Oregon, U.S.
- Aetiocetus means “causal whale”, with aetio- being the Greek root for “cause” or “origin”, and –cetus meaning “whale”. This name was given to the genus by Douglas Emlong in his 1966 monograph of Aetiocetus cotylalveus, though he failed to present an etymology. A. cotylalveus approximately means “bowl cavity”, cotyl- meaning “cup” or “bowl” in Greek, while alveus is Latin for “hollow” or “cavity”. However, the author’s original reasoning for the genus and species name for A. cotylalveus remains unknown.
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| - Japan, Mexico, and Oregon
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| - Aetiocetus is a genus of extinct baleen whale that lived 33.9 to 23.03 million years ago, in the Oligocene in the North Pacific, around Japan, Mexico, and Oregon, U.S.
- Aetiocetus means “causal whale”, with aetio- being the Greek root for “cause” or “origin”, and –cetus meaning “whale”. This name was given to the genus by Douglas Emlong in his 1966 monograph of Aetiocetus cotylalveus, though he failed to present an etymology. A. cotylalveus approximately means “bowl cavity”, cotyl- meaning “cup” or “bowl” in Greek, while alveus is Latin for “hollow” or “cavity”. However, the author’s original reasoning for the genus and species name for A. cotylalveus remains unknown. A. tomitai is named in honor of then-mayor Akio Tomita of Ashoro-cho, Hokkaido, Japan,[2] who was a huge support for their work on Japanese cetaceans. A. weltoni is named in honor of Doctor Bruce J. Welton, who initially discovered the holotype and directed the excavation of the skeleton.[2] A. polydentatus is named in reference to the polydont dentition present in the specimen; poly- being the Greek root for “many” and –dentatus Latin for “toothed”.
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