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Sigmocyathus

Archaeocyatha - Ajacicyathida - Sigmocyathidae

Taxonomy
Sigmocyathus is a genus. It is not extant. It is the type genus of Sigmocyathoidea, Sigmocyathidae.

It was assigned to Ajacicyathida by Sepkoski (2002); and to Sigmocyathidae by Debrenne et al. (2015).

Synonymy list
YearName and author
2002Sigmocyathus Sepkoski
2015Sigmocyathus Debrenne et al. p. 995

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RankNameAuthor
kingdomAnimalia()
phylumPoriferaGrant 1836
classArchaeocyatha(Vologdin 1937)
orderAjacicyathida
RankNameAuthor
suborderAjacicyathina
superfamilySigmocyathoideaKrasnopeeva 1953
familySigmocyathidaeKrasnopeeva 1953
genusSigmocyathus

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.

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Diagnosis
No diagnoses are available