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Ceterhinops
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).
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
Year | Name and author |
---|---|
1877 | Ceterhinops Leidy p. 230 |
1902 | Ceterhinops Hay p. 590 |
1904 | Ceterhinops Trouessart p. 756 |
1907 | Ceterhinops True p. 7 |
1928 | Ceterhinops Kellogg p. 33 figs. Table 1 |
1930 | Ceterhinops Hay p. 591 |
1945 | Ceterhinops Simpson p. 103 |
1988 | Ceterhinops Carroll |
1997 | Ceterhinops McKenna and Bell p. 371 |
2002 | Ceterhinops Sepkoski |
2003 | Ceterhinops Dooley p. 17 |
2008 | Ceterhinops Uhen et al. p. 571 |
2017 | Ceterhinops Berta p. 165 |
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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
Reference | Diagnosis | |
---|---|---|
M. D. Uhen et al. 2008 | Differs 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). |