Protodonata

Japanese: Protodonata
Protodonata

…the fossil was found in a coal mine in Comtrey, France. The wing venation resembles that of a dragonfly, but it lacks the triangular chamber, tubercles, and margins characteristic of dragonflies, and so this species is classified as the Protodonata, to be distinguished from the Odonata. Protodontid insects flourished from the Late Carboniferous to the Permian, and became extinct in the Early Mesozoic. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…化石はフランス,コマントリーの炭鉱の坑内から産出した。翅脈はトンボに似ているが,トンボ特有の三角室,結節,縁紋がなく,この類を原トンボ目Protodonataとしてトンボ目Odonataと区別する。原トンボ類の昆虫は,石炭紀後期より二畳紀にかけて栄え,中生代の前期に絶滅した。…

※「Protodonata」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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