PBDB Taxon

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Ctenacanthus major

Chondrichthyes - Ctenacanthiformes - Ctenacanthidae

Taxonomy

Ctenacanthus major was named by Agassiz (1836).

Synonyms

Ctenacanthus varians was named by St. John and Worthen (1875). It is not extant.

It was synonymized objectively with Ctenacanthus major by Maisey (1981).
Ctenacanthus spectabilis was named by St. John and Worthen (1875). It is not extant.

It was synonymized objectively with Ctenacanthus major by Maisey (1981).
Ctenacanthus maximus was named by de Koninck (1878). It is not extant.

It was synonymized subjectively with Ctenacanthus major by Maisey (1981).
Ctenacanthus tenuistriatus was named by Agassiz (1836).

It was synonymized objectively with Ctenacanthus major by Maisey (1981).
Ctenacanthus harrisoni was named by St. John and Worthen (1883). It is not extant.

It was synonymized objectively with Ctenacanthus major by Maisey (1981).
Ctenacanthus deflexus was named by St. John and Worthen (1883). It is not extant.

It was synonymized objectively with Ctenacanthus major by Maisey (1981).
Ctenacanthus salopiensis was named by Davis (1883). It is not extant.

It was synonymized objectively with Ctenacanthus major by Maisey (1981).

Synonymy list

Year	Name and author
1836	Ctenacanthus major Agassiz figs. Pl 4, figs 1-3
1836	Ctenacanthus tenuistriatus Agassiz figs. Pl 3, figs 7-11
1837	Ctenacanthus major Agassiz p. 10
1837	Ctenacanthus tenuistriatus Agassiz p. 11
1875	Ctenacanthus spectabilis St. John and Worthen
1875	Ctenacanthus varians St. John and Worthen
1878	Ctenacanthus maximus de Koninck
1883	Ctenacanthus salopiensis Davis
1883	Ctenacanthus deflexus St. John and Worthen
1883	Ctenacanthus harrisoni St. John and Worthen
1891	Ctenacanthus major Woodward p. 98
1902	Ctenacanthus major Hay p. 326
1902	Ctenacanthus deflexus Hay p. 327
1902	Ctenacanthus harrisoni Hay p. 328
1902	Ctenacanthus spectabilis Hay p. 328
1902	Ctenacanthus varians Hay p. 328
1909	Ctenacanthus varians Hay p. 52 figs. pl. 13 figs 4-5
1981	Ctenacanthus major Maisey p. 2 fig. 1

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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)
family	Ctenacanthidae	Dean 1909
genus	Ctenacanthus
species	major

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.

†Ctenacanthus major Agassiz 1836

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Invalid names: Ctenacanthus deflexus St. John and Worthen 1883 [objective synonym], Ctenacanthus harrisoni St. John and Worthen 1883 [objective synonym], Ctenacanthus maximus de Koninck 1878 [synonym], Ctenacanthus salopiensis Davis 1883 [objective synonym], Ctenacanthus spectabilis St. John and Worthen 1875 [objective synonym], Ctenacanthus tenuistriatus Agassiz 1836 [objective synonym], Ctenacanthus varians St. John and Worthen 1875 [objective synonym]

Diagnosis

No diagnoses are available