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Glite Dictionary
Pteridospermopsida

Pteridospermopsida

9.9
A group of extinct seed plants with leaves like ferns that lived long ago
  • noun
  • /ˌtɛrɪdoʊˈspɜrmɒpsɪdə/
  • Specialized
translation icon : Pteridospermopsida
  • Pteridospermopsida species are often referred to as seed ferns due to their fern-like leaves and seed-bearing structures.

Examples

  • Fossils of Pteridospermopsida have been key to understanding plant evolution in the Paleozoic era.

  • Many fossils of Pteridospermopsida have been discovered in coal deposits.

  • The extinction of Pteridospermopsida marked a significant transition in prehistoric plant life.

  • The Pteridospermopsida thrived during the Mesozoic era.

  • Many fossils of Pteridospermopsida have been discovered in coal deposits, providing insight into ancient ecosystems.

  • Fossils of Pteridospermopsida have been key to understanding plant evolution during the Paleozoic era.

  • The extinction of Pteridospermopsida marked a significant transition in the evolution of gymnosperms.

Synonyms

Pteridospermaphyta
vsPteridospermopsida
  • Specialized
9.9

A group of extinct plants like ferns but with seeds known from fossils

is the class that covers this group and spans Carboniferous to Jurassic
Pteridospermae
vsPteridospermopsida
  • Specialized
9.9

Extinct seed plants with fern-like leaves from long ago

is the class extending beyond Paleozoic into later geological periods
group Pteridospermae
vsPteridospermopsida
  • Archaic
9.9

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

is the modern class term replacing the older group label
seed fern
vsPteridospermopsida
  • Specialized
9.9

Plants that looked like ferns but made seeds long ago

is the formal scientific class label rather than the broad common term

Surface Forms

Pteridospermopsida singular
Pteridospermopsidas plural

Morphology

Pteridospermopsida = pteridosperm (opaque) = pterido + sperm + opsida

The class-name suffix -opsida is specialized scientific nomenclature, so the immediate base is not easily inferable for an average learner.

Etymology

Pteridospermopsida breaks into Greek parts pterido- meaning 'fern', sperma meaning 'seed', and -opsida meaning 'group'. So the name means a 'group of seed ferns', which makes it easy to remember these long-ago plants looked like ferns but made seeds.