group pteridospermae
Học thuậtThân thiện
A scientist points to a fossil of the group Pteridospermae in a museum display.
Definition
Noun: - A taxonomic group in some classification systems: This term refers to a category used in certain scientific classification schemes to encompass an assemblage of extinct fossil gymnosperm plants. This group is considered equivalent in scope to the order Cycadofilicales.
Usage
- The term is used specifically in the context of paleobotanical taxonomy to classify a set of extinct seed plants known as seed ferns.
- It is a technical, historical classification term. Modern classifications may use different groupings.
Examples
- group Pteridospermae
- group Pteridospermae,
Advanced Usage
- The term is often used synonymously with "pteridosperms" or "seed ferns" in a general sense, though technically it refers to a specific formal grouping in certain classification systems.
Variants and Related Words
- Pteridospermae (noun): Often used interchangeably as the name of the group itself.
- Pteridosperm (noun): A member of this group; an extinct seed plant with fern-like foliage.
- Cycadofilicales (noun): The order considered coextensive with this group.
- Seed fern (noun): The common name for plants belonging to this group.
Synonyms
- Seed ferns (common name)
- Pteridosperms (scientific common term)
- Order Cycadofilicales (equivalent taxonomic rank in other systems)
A scientist points to a fossil of the group Pteridospermae in a museum display.
Noun
- used in some classification systems: a group of extinct fossil gymnosperms coextensive with the order Cycadofilicales