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Rectannulus
Taxonomy
Rectannulus was named by Debrenne (1977) [Sepkoski's age data: Cm Atda-u Cm Boto-u Sepkoski's reference number: 1243]. Its type is Rectannulus willeferta.
It was assigned to Ajacicyathida by Sepkoski (2002); and to Densocyathidae by Debrenne et al. (2015).
It was assigned to Ajacicyathida by Sepkoski (2002); and to Densocyathidae by Debrenne et al. (2015).
Species
R. willeferta (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Rectannulus Debrenne |
| 2002 | Rectannulus Sepkoski |
| 2015 | Rectannulus Debrenne et al. p. 940 |
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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