seed fern

noun

1. any of various plants of the order Lyginopteridales (or Cycadofilicales), known only as fossils, having fernlike leaves and reproducing by means of seeds.

seed fern

noun

1. another name for pteridosperm

Word History and Origins

Origin of seed fern¹

First recorded in 1925–30

Example Sentences

The finds also include the remains of an ancient seed fern called Dicroidium, which could help to settle a debate over the species' history.

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This fragment of a fossilized seed fern was freed from the rock that preserved it using strong acid.Credit:

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