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Morphology Ecology and taphonomy   Age range and collections

Quadratotrigonia

Bivalvia - Trigoniida - Trigoniidae

Taxonomy
Quadratotrigonia was named by Dietrich (1933) [Sepkoski's age data: J Tith K Ceno]. It is not extant.

It was assigned to Trigoniidae by Vokes (1980); and to Trigonioida by Sepkoski (2002).

Synonymy list
YearName and author
1933Quadratotrigonia Dietrich
1980Quadratotrigonia Vokes p. 99
2002Quadratotrigonia Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classBivalvia
Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Cox 1960)
UniomorphiGray 1854
UnioniGray 1854
UnionataGray 1854
orderTrigoniida(Dall 1889)
superfamilyTrigonioideaLamarck 1819
familyTrigoniidaeLamarck 1819
genusQuadratotrigoniaDietrich 1933

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