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Tetragonocyclicus
Discussion
Disarticulated columnals, according to Ubaghs, et al., 1978: T935
Taxonomy
Tetragonocyclicus was named by Dubatolova (1964). It is considered to be a form taxon.
It was assigned to Crinoidea by Breyvel et al. (1977).
It was assigned to Crinoidea by Breyvel et al. (1977).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1964 | Tetragonocyclicus Dubatolova |
| 1977 | Tetragonocyclicus Breyvel et al. |
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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. †Tetragonocyclicus Dubatolova 1964
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Diagnosis
No diagnoses are available