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Callistophytaceae : ウィキペディア英語版 | Callistophytaceae
The Callistophytaceae was a family of seed ferns (pteridosperms) from the Carboniferous and Permian periods. They first appeared in late Middle Pennsylvanian (Moscovian) times, 306.5–311.7 million years ago (Ma) in the tropical coal forests of Euramerica, and became an important component of Late Pennsylvanian (Kasimovian-Gzhelian; 299.0–306.5 Ma) vegetation of clastic soils and some peat soils. The best known callistophyte was documented from Late Pennsylvanian coal ball petrifactions in North America.〔Rothwell, G. W. (1981). "The Callistophytales (Pteridospermopsida). Reproductively sophisticated gymnosperms." ''Review of Palaeobotany and Palynology'', 32: 103-121.〕 ==Description==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Callistophytaceae」の詳細全文を読む
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