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Deltoptychius

Chondrichthyes - Menaspiformes - Deltoptychiidae

Taxonomy
Deltoptychius was named by Morris and Roberts (1862) [Sepkoski's age data: C Vise C Serp Sepkoski's reference number: 451]. It is not extant. Its type is Cochliodus acutus.

It was assigned to Cochliodontidae by Woodward (1889), Hay (1902) and Jordan (1963); to Chimaeriformes by Sepkoski (2002); and to Deltoptychiidae by Zangerl (1981) and Nelson (2006).

Synonymy list
YearName and author
1862Deltoptychius Morris and Roberts
1889Deltoptychius Woodward p. 212
1902Deltoptychius Hay p. 294
1963Deltoptychius Jordan p. 594
1981Deltoptychius Zangerl p. 48
2002Deltoptychius Sepkoski, Jr.
2006Deltoptychius Nelson p. 44

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
classChondrichthyes
subclassHolocephali(Bonaparte 1832)
superorderHolocephalomorphaLund 1986
orderMenaspiformes
familyDeltoptychiidae
genusDeltoptychiusMorris and Roberts 1862

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