Polymera

Japanese: Polymera
Polymera

…The thoracic segment is made up of several separate, movable segments, and is structured for bending. Adults with only 2-3 segments are called the Miomera, whereas adults with many segments (9 or more) are called the Polymera. These are the two major divisions of trilobites. The dorsal carapace of the tail is called the tail plate, and is made up of many fused segments. …

*Some of the terminology explanations that mention "Polymera" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…胸部節は複数の分離・可動の体節からなり,屈曲に向いた構造を示す。 成体になっても体節数が2~3に限られるものを少節類Miomera,多数(9節以上)あるものを多節類Polymeraと称し,三葉虫類の二大区分とされる。 尾部の背甲部は尾板といい,癒合した多数の体節からなる。…

※「Polymera」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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