| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Archaeocyathus (Spirocyathus)
Taxonomy
Spirocyathus was named as a genus.
It was synonymized subjectively with Archaeocyathus by Okulitch (1950); it was reranked as Archaeocyathus (Spirocyathus) by Okulitch (1954).
It was assigned to Spirocyathidae by Raymond (1931); to Archaeocyathus by Okulitch (1954); and to Archaeocyathida by Osadchaya et al. (1979).
It was synonymized subjectively with Archaeocyathus by Okulitch (1950); it was reranked as Archaeocyathus (Spirocyathus) by Okulitch (1954).
It was assigned to Spirocyathidae by Raymond (1931); to Archaeocyathus by Okulitch (1954); and to Archaeocyathida by Osadchaya et al. (1979).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Spirocyathus Raymond p. 177 |
| 1954 | Archaeocyathus (Spirocyathus) Okulitch p. 295 |
| 1979 | Spirocyathus Osadchaya et al. |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
show all | hide all
†Archaeocyathus (Spirocyathus) yavorskii Vologdin 1931
†Spirocyathus constrictus Raymond 1931
Diagnosis
No diagnoses are available