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Hexactinellida - Innaecoeliida - Craticulariidae

Sphenaulax was named by Zittel (1877) [Sepkoski's age data: J Call-l J Oxfo-u Sepkoski's reference number: 868]. It is not extant.

It was assigned to Hexactinosa by Sepkoski (2002); and to Craticulariinae by Finks et al. (2004).

Synonymy list
YearName and author
1877Sphenaulax Zittel
1989Calycospongia Wu and Xiao
2002Calycospongia Sepkoski, Jr.
2002Sphenaulax Sepkoski, Jr.
2004Sphenaulax Finks et al.

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phylumPoriferaGrant 1836
classHexactinellidaSchmidt 1870
orderInnaecoeliidaBoiko 1990
familyCraticulariidaeRauff 1893
subfamilyCraticulariinaeRauff 1893
genusSphenaulaxZittel 1877

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.

No diagnoses are available