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Pteridospermaphyta

Pteridospermaphyta

9.9
A group of extinct plants like ferns but with seeds known from fossils
  • noun
  • /ˌtɛrɪˌdoʊspərˈmæfaɪtə/
  • Specialized
translation icon : Pteridospermaphyta
  • Fossils of Pteridospermaphyta provide important evidence of early seed plant evolution.

Examples

  • The Pteridospermaphyta were dominant during the late Paleozoic era.

  • Scientists debate the classification of Pteridospermaphyta within gymnosperms.

  • The Pteridospermaphyta were dominant during the late Paleozoic era.

  • Many fossils of Pteridospermaphyta have been discovered in North America.

  • Fossils of Pteridospermaphyta provide important evidence of early seed plant evolution.

  • Many fossils of Pteridospermaphyta have been discovered in North America.

  • Scientists debate the classification of Pteridospermaphyta within gymnosperms.

Synonyms

Pteridospermae
vsPteridospermaphyta
  • Specialized
9.9

Extinct seed plants with fern-like leaves from long ago

is the same fossil group described in this entry
group Pteridospermae
vsPteridospermaphyta
  • Archaic
9.9

A group of extinct plants with seeds and fern-like leaves

is the current concept label for that identical fossil group
seed fern
vsPteridospermaphyta
  • Specialized
9.9

Plants that looked like ferns but made seeds long ago

is the scientific group term rather than the informal common name
Cycadofilicales
vsPteridospermaphyta
  • Specialized
9.9

A group of ancient seed plants called seed ferns from the Devonian period

is the plant group that is coextensive with that order
order Cycadofilicales
vsPteridospermaphyta
  • Specialized
9.9

A group of extinct seed plants like ferns that lived a very long time ago

is the plant group defined as coextensive with that order
pteridosperm
vsPteridospermaphyta
  • Specialized
9.9

A long-dead plant that makes seeds and looks like a fern

refers to the whole group rather than a single plant
Pteridospermopsida
vsPteridospermaphyta
  • Specialized
9.9

A group of extinct seed plants with leaves like ferns that lived long ago

is narrower, denoting one specific group within that larger class

Surface Forms

Morphology

Pteridospermaphyta = pteridosperm (opaque) = pterido + sperma + phyta

The formation uses specialised Greek combining forms common in scientific taxonomy and is not derivable by an average B1 learner from the component parts.

Etymology

Pteridospermaphyta comes from old Greek parts: pterido- 'fern', sperma 'seed', and phyta 'plants'. So the name means 'seed ferns', a helpful image because these extinct plants made seeds but looked like ferns.