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Sphenodus

Chondrichthyes - Synechodontiformes - Orthacodontidae

Taxonomy
Sphenodus was named by Agassiz (1843) [Sepkoski's age data: J Sine T Dani Sepkoski's reference number: 884].

It was reranked as Lamna (Sphenodus) by Agassiz (1843).

It was assigned to Lamna by Agassiz (1843); to Lamnidae by Jordan (1963); to Orthacodontidae by Duffin and Ward (1993) and Rees (2000); and to Hexanchiformes by Sepkoski (2002).

Synonyms
Synonymy list
YearName and author
1843Lamna (Sphenodus) Agassiz p. 288
1843Sphenodus Agassiz p. 288
1889Orthacodus Woodward p. 349
1963Orthacodus Jordan p. 599
1963Sphenodus Jordan p. 599
1993Sphenodus Duffin and Ward p. 56
2000Sphenodus Rees p. 415
2002Sphenodus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii()
NeoselachiiCompagno 1977
superorderSqualomorphii(Compagno 1973)
orderSynechodontiformes
familyOrthacodontidaede Beaumont 1960
genusSphenodus

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