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Demospongea - Spirosclerophorida - Cnemidiastridae

Cnemidiastrum was named by Zittel (1878) [Sepkoski's age data: J Oxfo-l T Mi-u-l Sepkoski's reference number: 698,1066]. It is not extant.

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

Synonymy list
YearName and author
1878Cnemidiastrum Zittel
1937Lithostrobilus Schrammen
2002Cnemidiastrum Sepkoski, Jr.
2004Cnemidiastrum Finks et al. p. 291

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phylumPoriferaGrant 1836
classDemospongea(Sollas 1875)
subclassLithistida(Schmidt 1870)
orderSpirosclerophoridaReid 1963
suborderRhizomorinaZittel 1895
familyCnemidiastridaeSchrammen 1924
genusCnemidiastrumZittel 1878

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