Nimravinae

Japanese: Nimravinae
Nimravinae


[Origin of cats]
Modern cats (Felinae) originally descended from forest-dwelling ancestors. The Miacidae appeared in the middle Paleocene 50 million years ago and flourished until the early Oligocene 35 million years ago. The Nimravinae branched off from the Miacidae in the late Eocene 40 million years ago, and flourished through the Oligocene and Miocene until the early Pliocene 5 million years ago. The direct ancestor of the Felinae is the Nimravinae, which flourished until the early Pliocene 5 million years ago through the Oligocene and Miocene. Most Nimravinae had five digits on their hind feet (four in the Felinae), long jaws, many teeth, usually 36 (28-30 in the Felinae), and faces very similar to those of modern civets.

*Some of the terminology that mentions "Nimravinae" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[ネコ類の起源]
 現生のネコ類(ネコ亜科)は元来森林生の祖先から発している。今から5000万年ほど前の暁新世中期に現れ,3500万年前の漸新世初期まで栄えたミアキス科Miacidaeのものから,約4000万年前の始新世後期に分岐し,漸新世,中新世を経て,500万年前の鮮新世前期まで栄えたニムラブス亜科Nimravinaeがネコ亜科の直接の祖先である。ニムラブスの多くは後足にも5指(ネコ亜科では4指)をもち,あごが長く,歯数がふつう36本と多く(ネコ亜科では28~30本),顔は現在のジャコウネコ類によく似ていた。…

※「Nimravinae」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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