PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Ctenacanthoidea

Chondrichthyes - Ctenacanthiformes

Taxonomy

Ctenacanthoidea was named by Zangerl (1981).

It was assigned to Symmoriida by Williams (1998); to Euselachii by Zangerl (1981), Williams (2001); and to Ctenacanthiformes by Ginter (2002).

Subtaxa

Anaclitacanthus, Asteroptychius, Bandringidae, Carinacanthus, Emerikodus, Pyknotylacanthus, Rhombacanthus, Tamiobatidae, Wodnika (syn. Radamas)

Synonymy list

Year	Name and author
1981	Ctenacanthoidea Zangerl p. 51
1998	Ctenacanthoidea Williams p. 251
2001	Ctenacanthoidea Williams p. 215
2002	Ctenacanthoidea Ginter p. 547

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata

Rank	Name	Author
class	Chondrichthyes
subclass	Elasmobranchii	Bonaparte 1838
infraclass	Euselachii	()
order	Ctenacanthiformes	(Cappetta 1988)
superfamily	Ctenacanthoidea
superfamily	Ctenacanthoidea

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.

Superfm. †Ctenacanthoidea Zangerl 1981

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G. †Anaclitacanthus St. John and Worthen 1875

†Anaclitacanthus semicostatus Saint John and Worthen 1875

G. †Asteroptychius Agassiz 1843

†Asteroptychius bellulus Saint John and Worthen 1875

†Asteroptychius bellus Branson 1906

†Asteroptychius elegans Newberry 1889

†Asteroptychius gracilis Newberry 1897

†Asteroptychius keokuk Saint John and Worthen 1875

†Asteroptychius ornatus Agassiz 1843

†Asteroptychius sanctiludovici Saint John and Worthen 1875