pteridospermaphyta

• Grupo taxonómico utilizado en algunos sistemas de clasificación, referido a un extinto división de plantas con semillas que existió durante las eras Paleozoica y Mesozoica, coincidiendo con el orden Cycadofilicales.

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.

incontable · nombre propio

1. Extinct seed fernsC2formalscientific

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

   Pteridospermatofitas (helechos con semilla)

   • 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.

   Sinónimoscycadofilicalespteridospermae