Annularia
Sign in to saveAnnularia is a form taxon, applied to fossil foliage belonging to extinct plants of the genus Calamites in the order Equisetales.
In the Vinony graph
Within Vinony's link graph, Annularia is referenced by 50 other articles, and connects out to Equisetum, United States and Russia.
It sits within the topics Carboniferous extinctions, Carboniferous first appearances and Carboniferous plants.
Its subject is documented across 9 Wikipedia language editions.
Wikidata facts
- Parent taxon
- Calamitaceae
- Image
- Annularia Stellata.jpg
Show 3 more facts
- Commons category
- Annularia
- taxon name
- Annularia
- taxon rank
- genus
Sources (1)
via Wikidata · CC0
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Encyclopedic overview
5 sectionsContents
- Description
- Fossil records
- See also
- References
- External links
Annularia is a form taxon, applied to fossil foliage belonging to extinct plants of the genus Calamites in the order Equisetales.
==Description== Annularia is a form taxon name given to leaves of Calamites. In that species, the leaves formed radiating leaf whorls at each stem node, in a similar way to the branches of Equisetum, an extant genus of horsetails. Annularia leaves are arranged in whorls of between 8 and 13 leaves. The leaf shape is quite variable, being oval in Annularia sphenophylloides and linear to lanceolate in Annularia radiata, but they are always flat and of varying lengths.
Excerpted from Wikipedia’s “Annularia” article, available under the CC BY-SA 4.0 licence.