Pecopteris (English spelling)
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A genus of fossil plants. The genus includes cycads, which flourished from the Carboniferous to the Permian and are apparently an intermediate form of gymnosperms and ferns, but most belong to the eupterate ferns of the family Liupinaceae. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
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化石植物の一属。この属名は，石炭紀からペルム紀に栄え，明らかに裸子植物の古い型でシダ植物との中間型を示すとされるソテツシダ類に属するものを含むが，大部分は真嚢シダ類リウビンタイ科に属する。
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
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