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Ceterhinops

Mammalia - Cetacea - Eurhinodelphinidae

Taxonomy
Ceterhinops was named by Leidy (1877) [Sepkoski's age data: T Mi-m]. It is not extant. Its type is Ceterhinops longifrons. It was considered monophyletic by Uhen et al. (2008).

It was assigned to Squalodontidae by Leidy (1877), Hay (1902), Trouessart (1904) and True (1907); to Eurhinodelphinae by Hay (1930); to Delphinidae by Kellogg (1928), Simpson (1945) and Carroll (1988); to Autoceta by McKenna and Bell (1997); to Cetacea by Sepkoski (2002); and to Eurhinodelphinidae by Dooley (2003), Uhen et al. (2008) and Berta (2017).

Species
C. longifrons (type species)

Synonymy list
YearName and author
1877Ceterhinops Leidy pp. 230-232 figs. Plate 34, Fig. 7
1902Ceterhinops Hay p. 590
1904Ceterhinops Trouessart p. 756
1907Ceterhinops True p. 7
1928Ceterhinops Kellogg p. 33 figs. Table 1
1930Ceterhinops Hay p. 591
1945Ceterhinops Simpson p. 103
1988Ceterhinops Carroll
1997Ceterhinops McKenna and Bell p. 371
2002Ceterhinops Sepkoski
2003Ceterhinops Dooley p. 17
2008Ceterhinops Uhen et al. p. 571
2017Ceterhinops Berta p. 165

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
RankNameAuthor
—Theriamorpha(Rowe 1993)
—Theriiformes()
—Trechnotheria
—Cladotheria
—Zatheria
subclassTribosphenida()
subclassTheria
—Eutheria()
—Placentalia
—Boreoeutheria
—Laurasiatheria
—Scrotifera
—Euungulata
—Artiodactylamorpha
—Artiodactyla()
—Whippomorpha
orderCetacea
—Pelagiceti
—Neoceti
suborderOdontoceti
familyEurhinodelphinidae()
genusCeterhinops

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.

G. †Ceterhinops Leidy 1877
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†Ceterhinops longifrons Leidy 1877
Diagnosis
ReferenceDiagnosis
M. D. Uhen et al. 2008Differs from Argyrocetus by having larger temporal fossae, more prominent lambdoid crests, lambdoid crests that curve posteromedially at the posterior edges of the temporal fossae, and larger roots of teeth. Posterior portion of the vomer exhibits a comparatively capacious groove for the mesethmoid cartilage; mesethmoid bone forms a thick partition separating the external nares and ends in a stout tuberosity at the commencement of the supra-vomerine canal. The frontal is remarkably long; at the occipital boundary it forms a transversely concave line and is about an inch in thickness; surface of the forehead is nearly flat, but slightly convex laterally and towards the fore part. The posterior portions of the premaxillaries are comparatively narrow where they bound the nares and end in a point extending three-fourths the length of the forehead between the frontal and the expanded supra-orbital portion of the maxillary (Leidy, 1877).