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pteridospermae

/ˌtɛr.ɪ.dəʊˈspɜː.miː/

翻译: 一个分类学类群,在某些分类系统中用于指已灭绝的种子蕨类(种子蕨植物门),相当于苏铁蕨目(Cycadofilicales)。

1 个条目

noun

/ˌtɛr.ɪ.dəʊˈspɜː.miː/C2formalscientific
  • zh一个分类学类群,在某些分类系统中用于指已灭绝的种子蕨类(种子蕨植物门),相当于苏铁蕨目(Cycadofilicales)。

A taxonomic group used in some classification systems to refer to an extinct order of fossil gymnosperms, coextensive with the order Cycadofilicales.

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  1. Extinct seed fernsC2formalscientific

    A group of extinct fossil gymnosperms, coextensive with the order Cycadofilicales, used in some classification systems.

    zh种子蕨

    • Pteridospermae are known from the Devonian to the Jurassic periods.
    • Fossils of Pteridospermae show characteristics of both ferns and seed plants.
    • The classification of Pteridospermae has been revised with new fossil discoveries.

    同义词cycadofilicales