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pteridospermaphyta

/ˌtɛr.ɪ.dəʊ.spɜːˈmæf.ɪ.tə/

翻译: 种子蕨门,一类已灭绝的原始种子植物,生存于古生代和中生代,兼具蕨类与种子植物的特征;在部分分类系统中被视为一个门或目,与苏铁蕨目相当。

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noun

/ˌtɛr.ɪ.dəʊ.spɜːˈmæf.ɪ.tə/C2formalscientific
  • zh种子蕨门,一类已灭绝的原始种子植物,生存于古生代和中生代,兼具蕨类与种子植物的特征;在部分分类系统中被视为一个门或目,与苏铁蕨目相当。

A taxonomic group used in some classification systems, referring to an extinct division of seed plants that existed during the Paleozoic and Mesozoic eras, 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种子蕨植物

    • Pteridospermaphyta are known only from the fossil record of the Paleozoic era.
    • Scientists classify Pteridospermaphyta as an early group of seed plants.
    • The study of Pteridospermaphyta helps understand the evolution of gymnosperms.

    同义词cycadofilicalespteridospermae