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Morphology Ecology and taphonomy   Age range and collections

Orthoptyxis

Gastropoda - Cephalaspida

Taxonomy
Orthoptyxis was named by Yang & Wang (1985) [Sepkoski's age data: J K Sepkoski's reference number: ZR85]. It is not extant.

It was assigned to Cephalaspida by Sepkoski (2002).

Synonymy list
YearName and author
1985Orthoptyxis Yang & Wang
2002Orthoptyxis Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
RankNameAuthor
phylumMollusca
classGastropodaCuvier 1797
subclassOpisthobranchiaMilne-Edwards 1848
orderCephalaspidaFischer 1883
genusOrthoptyxisYang & Wang 1985

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