…The first seeds, named Archaeosperma (illustration), were discovered and reported at the end of the Devonian period, but all others appeared after the Carboniferous period. Based on the structure of the stem, they are divided into the eucentric Lyginopteridales and the multi-rayed Medullosales. Fossil specimens of the stems, leaves, seeds, and reproductive organs have been discovered separately and given different names (morphogeneric names). … *Some of the terminology that mentions "Lyginopteridales" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…デボン紀末にアルカエオスペルマArchaeosperma(イラスト)と名づけられた最初の種子が発見報告されたが,これ以外は全部石炭紀以降に出現した。 幹の構造により真正中心柱型のリギノプテリス目Lyginopteridalesと,多条中心柱型のメデュロサ目Medullosalesに分けられる。化石標本は茎,葉,種子,繁殖器官など別々に発見され,別々の名前(形態属名)がつけられている。… ※「Lyginopteridales」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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