Pisces (animal) (English spelling) Pisces

…The Amphibians Amphibia, which branched off from the Crossopterygii (subclass) of the Osteichthyes that acquired bones and gained limbs and lungs, appeared during the transition from the Devonian to the Carboniferous period; the Reptiles Reptilia, which branched off from the Amphibians and gained an amniotic membrane, appeared in the Late Carboniferous period; the Birds Aves, which branched off from the Archosauria subclass of reptiles and gained feathers, appeared in the Early Jurassic period; and the Mammalia, which branched off from the Synapsida subclass of the Reptilia and gained split hairs, mammary glands, and three middle ear ossicles, appeared in the Late Triassic period. The Agnatha, Placoderms, Chondrichthyes, and Osteichthyes are sometimes grouped together into the Fishes Pisces, and the remaining classes into the Tetrapoda superclass of Tetrapods. Chordata [Imaizumi Yoshinori]. …

*Some of the terminology that mentions "Pisces (animals)" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…硬骨を獲得した硬骨魚綱の中の総鰭類(亜綱)Crossopterygiiから分かれ，四肢と肺を獲得した両生類Amphibiaはデボン紀から石炭紀への移行期，両生綱から分かれ羊膜を獲得した爬虫類Reptiliaは石炭紀後期，爬虫類の祖竜亜綱Archosauriaから分かれ羽毛を獲得した鳥類Avesはジュラ紀前期，同じく爬虫綱の単弓亜綱Synapsidaから分かれ毛と乳腺および3個の中耳小骨を獲得した哺乳類Mammaliaは三畳紀後期に現れている。無顎綱，板皮綱，軟骨魚綱，および硬骨魚綱を合わせて魚類Pisces，残りのものを四足動物Tetrapodaの2上綱とすることがある。脊索動物動物【今泉 吉典】。…

※「Pisces（動物）」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。

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