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Hexactinellida - Hexactinosa - Tretodictyidae

Tretodictyum was named by Schulze (1887) [Sepkoski's age data: K Ceno R]. It is extant.

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

Synonymy list
YearName and author
1887Tretodictyum Schulze
2002Tretodictyum Sepkoski, Jr.
2004Tretodictyum Finks et al.

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phylumPoriferaGrant 1836
classHexactinellidaSchmidt 1870
subclassHexasterophoraSchulze 1886
orderHexactinosaSchrammen 1903
familyTretodictyidaeSchulze 1887
subfamilyTretodictyinaeSchulze 1887
genusTretodictyumSchulze 1887

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