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Ptychophyllum

Anthozoa - Stauriida - Ptychophyllidae

Taxonomy
Ptychophyllum was named by Milne-Edwards and Haime (1850) [Sepkoski's age data: S Ldov S Ludl Sepkoski's reference number: 1240]. It is not extant.

It was assigned to Ptychophyllinae by Hill (1956); to Ptychophyllidae by Hill (1981); and to Rugosa by Sepkoski (2002).

Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1850Ptychophyllum Milne-Edwards and Haime
1956Ptychophyllum Hill
1981Ptychophyllum Hill
2002Ptychophyllum Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Neuralia
phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
subclassRugosa(Milne-Edwards and Haime 1850)
RankNameAuthor
orderStauriidaVerrill 1865
suborderCyathophyllinaNicholson 1889
familyPtychophyllidaeDybowski 1873
genusPtychophyllumMilne-Edwards and Haime 1850

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