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Cyathaxonia

Anthozoa - Stauriida - Cyathaxoniidae

Taxonomy
Cyathaxonia was named by Michelin (1847) [Sepkoski's age data: D Fame-l P Guad-u Sepkoski's reference number: 680]. It is not extant. It is the type genus of Cyathaxoniidae.

It was assigned to Rugosa by Sepkoski (2002); and to Cyathaxoniidae by Hill (1956) and Fedorowski and Vassilyuk (2011).

Synonymy list
YearName and author
1847Cyathaxonia Michelin
1956Cyathaxonia Hill
2002Cyathaxonia Sepkoski
2011Cyathaxonia Fedorowski and Vassilyuk pp. 134 - 139

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RankNameAuthor
kingdomAnimalia()
phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
Hexacorallia()
subclassRugosa(Milne-Edwards and Haime 1850)
RankNameAuthor
orderStauriidaVerrill 1865
suborderMetriophyllinaSpasskiy 1965
familyCyathaxoniidaeMilne-Edwards and Haime 1850
genusCyathaxoniaMichelin 1847

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.

G. †Cyathaxonia Michelin 1847
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Cyathaxonia cordillerensis Easton et al. 1958
Cyathaxonia cornu Michelin 1846
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Invalid names: Cyathaxonia deriangmaensis Fan 2003 [synonym], Cyathaxonia tenuiseptata Fan 2003 [synonym], Cyathaxonia yunnanensis Fan 2003 [synonym]
Cyathaxonia khmeriana Fontaine 1961
Cyathaxonia minor He and Weng 1983
Diagnosis
ReferenceDiagnosis
J. Fedorowski and N. P. Vassilyuk 2011Small, solitary, non-dissepimented; major septa meet axially in early ontogeny and form a circulotheca at a more advanced growth stage with their inner margins reaching a basally secreted columella which projects high in calice; minor septa contratingent; tabularium biform; microstructure of septa finely trabecular.