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Petalaxis

Anthozoa - Stauriida - Petalaxidae

Taxonomy
Petalaxis was named by Milne-Edwards and Haime (1852) [Sepkoski's age data: C Vise-u C Mosc Sepkoski's reference number: 856,1240]. It is not extant.

It was synonymized subjectively with Lithostrotion by Hill (1956).

It was assigned to Rugosa by Sepkoski (2002); and to Petalaxidae by Bamber and Fedorowski (1998) and Fedorowski et al. (2007).

Synonyms
Synonymy list
YearName and author
1852Petalaxis Milne-Edwards and Haime
1984Grootia Yu
1998Petalaxis Bamber and Fedorowski
2002Petalaxis Sepkoski, Jr.
2007Petalaxis Fedorowski et al. p. 161

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RankNameAuthor
kingdomAnimalia()
Neuralia
phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
RankNameAuthor
subclassRugosa(Milne-Edwards and Haime 1850)
orderStauriidaVerrill 1865
familyPetalaxidaeFomichev 1953
genusPetalaxisMilne-Edwards and Haime 1852

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.

Diagnosis
No diagnoses are available