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Anthozoa - Stauriida - Cyathaxoniidae

Columnaxon was named by Scrutton (1971) [Sepkoski's age data: S Ludl]. It is not extant.

It was assigned to Cyathaxoniidae by Hill (1981); and to Rugosa by Sepkoski (2002).

Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1971Columnaxon Scrutton
1981Columnaxon Hill
2002Columnaxon Sepkoski, Jr.

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phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
subclassRugosa(Milne-Edwards and Haime 1850)
orderStauriidaVerrill 1865
suborderMetriophyllinaSpasskiy 1965
familyCyathaxoniidaeMilne-Edwards and Haime 1850
genusColumnaxonScrutton 1971

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