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Isistius

Chondrichthyes - Squaliformes - Squalidae

Taxonomy
Isistius was named by Gill (1864) [Sepkoski's age data: T Than R Sepkoski's reference number: 2,884]. It is extant.

It was assigned to Scymnorhinidae by Jordan (1963) and Cassier (1966); to Squalidae by Purdy et al. (2001); and to Squaliformes by Sepkoski (2002).

Synonymy list
YearName and author
1864Isistius Gill
1963Isistius Jordan p. 602
1966Isistius Cassier p. 64
2001Isistius Purdy et al. p. 87
2002Isistius Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
RankNameAuthor
classChondrichthyes
subclassElasmobranchiiBonaparte 1838
superorderSelachimorphaNelson 1984
orderSqualiformes
familySqualidaeBonaparte 1834
genusIsistiusGill 1864

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