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羊角蕨纲
维基百科,自由的 encyclopedia
羊角蕨纲(Horneophytopsida)是一种已灭绝的有胚植物,只有茎,没有叶、根与维管束,生存年代为志留纪晚期(约4亿2000万年前)。羊角蕨纲也是已知最古老的多孢植物类。
参考资料
- Kenrick, Paul & Crane, Peter R., The Origin and Early Diversification of Land Plants: a Cladistic Study, Washington, D.C.: Smithsonian Institution Press, 1997, ISBN 978-1-56098-730-7
- Crane, P.R.; Herendeen, P. & Friis, E.M., Fossils and plant phylogeny, American Journal of Botany, 2004, 91 (10): 1683–99, PMID 21652317, doi:10.3732/ajb.91.10.1683
外部链接
- Horneophyton at the University of Aberdeen (页面存档备份,存于互联网档案馆)
- Cladogram Archive.is的存档,存档日期2012-12-04 from Crane, Herendeen & Friis 2004