…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 |
…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 |
>>: Prōtogonos (English spelling)
…He appeared on stage as a child actor, and began...
A unit of length and base unit in the metric syst...
A district in the northern part of Hanyu City, Sa...
1906-1991 A composer from the Showa period. Born ...
A town in Soraku County in the southern part of Ky...
A medieval samurai family whose main territory was...
A district in the southwest of Tsukuba City, Ibar...
In English, it is called an ice axe. Mountaineeri...
Latitude in galactic coordinates, measured from ze...
…He lived in Italy from 1930, studying Italian op...
…A general term for marine fish of the Moridae fa...
…The body is copper or copper-green in color and ...
...A powerful samurai family in Hizen and Chikugo...
… The contents of the family head's right are...
A good that can be substituted for another good (s...