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Anthozoa - Stauriida - Phillipsastreidae

Trapezophyllum was named by Etheridge (1899) [Sepkoski's age data: D Sieg D Fras-m Sepkoski's reference number: 422,680]. It is not extant.

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

Synonymy list
YearName and author
1899Trapezophyllum Etheridge
1956Trapezophyllum Hill
1981Trapezophyllum Hill
2002Trapezophyllum Sepkoski, Jr.

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phylumCnidariaHatschek 1888
classAnthozoaEhrenberg 1834
subclassRugosa(Milne-Edwards and Haime 1850)
orderStauriidaVerrill 1865
suborderColumnariinaRominger 1876
familyPhillipsastreidaeHill 1954
genusTrapezophyllumEtheridge 1899

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