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Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Spirangium
Taxonomy
Spirangium was named by Schimper (1870). It is not extant. Its type is Spirangium carbonaria.
It was assigned to Problematica by Andrews (1970).
It was assigned to Problematica by Andrews (1970).
Species
S. carbonaria (type species)
Synonymy list
Year | Name and author |
---|---|
1870 | Spirangium Schimper |
1970 | Spirangium Andrews |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
No diagnoses are available