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Quadrithyris

Rhynchonellata - Spiriferida - Xenomartiniidae

Taxonomy
Quadrithyris was named by Havlicek (1957) [Sepkoski's age data: D Gedi-u D Give-l Sepkoski's reference number: 25]. It is not extant. It is the type genus of Quadrithyridinae.

It was reranked as Delthyris (Quadrithyris) by Havlicek (1959).

It was assigned to Delthyris by Havlicek (1959); to Spiriferida by Sepkoski (2002); and to Quadrithyridinae by Williams et al. (2006).

Synonymy list
YearName and author
1957Quadrithyris Havlicek
1959Delthyris (Quadrithyris) Havlicek
2002Quadrithyris Sepkoski, Jr.
2006Quadrithyris Williams et al. p. 1863

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderSpiriferida
suborderDelthyridinaIvanova 1972
superfamilyReticularioidea
familyXenomartiniidaeHavlicek 1971
subfamilyQuadrithyridinaeGourvennec 1994
genusQuadrithyrisHavlicek 1957

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