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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Spirodesmos
Taxonomy
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1920 | Spirodesmos Andree |
| 1975 | Spirodesmos Hantzschel |
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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.
G. †Spirodesmos Andree 1920
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Hantzschel 1975 | Large spiral-shaped form, diameter up to about 30 cm; consisting of individual parts 2 to 3 cm long and up to 10 mm wide; in outer coils parts are displaced toward interior with respect to each other; S. archimedeus Huckriede differs from type species by uninterrupted spiral band; type species possibly part of large double spiral such as Spirophycus. |
Measurements
No measurements are available
No ecological data are available