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Xystriphyllum

Anthozoa - Stauriida - Ptenophyllidae

Taxonomy
Xystriphyllum was named by Hill (1939) [Sepkoski's age data: S Prid D Give]. It is not extant.

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

Synonymy list
YearName and author
1939Xystriphyllum Hill
1956Xystriphyllum Hill
1981Xystriphyllum Hill
2002Xystriphyllum Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Neuralia
phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
subclassRugosa(Milne-Edwards and Haime 1850)
RankNameAuthor
orderStauriidaVerrill 1865
suborderPtenophyllinaWedekind 1927
familyPtenophyllidaeWedekind 1923
subfamilyPtenophyllinaeWedekind 1923
genusXystriphyllumHill 1939

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