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Taxonomy
Cetotherium vandelli was named by Van Beneden and Gervais (1868) [Museu Mineralogico e Geologica de Universidade de Lisboa]. Its type specimen is A1, a skull, and it is a 3D body fossil. Its type locality is Adiça, which is in a Tortonian marine limestone/sandstone in Portugal. It is the type species of Adicetus.
It was recombined as Cetotherium (Cetotheriophanes) vandelli by Brandt (1873); it was corrected as Cetotherium vandellii by Van Beneden and Gervais (1880); it was recombined as Plesiocetus vandellii by Trouessart (1898), Trouessart (1904); it was recombined as Aulocetus vandelli by Capellini (1902); it was recombined as Metopocetus vandelli by Kellogg (1940), Marx (2011); it was considered an invalid subgroup of Cetotheriidae by Goldin and Startsev (2014); it was considered an invalid subgroup of Tranatocetidae by Gol'din and Steeman (2015); it was recombined as Adicetus vandelli by Figueiredo et al. (2024).
It was recombined as Cetotherium (Cetotheriophanes) vandelli by Brandt (1873); it was corrected as Cetotherium vandellii by Van Beneden and Gervais (1880); it was recombined as Plesiocetus vandellii by Trouessart (1898), Trouessart (1904); it was recombined as Aulocetus vandelli by Capellini (1902); it was recombined as Metopocetus vandelli by Kellogg (1940), Marx (2011); it was considered an invalid subgroup of Cetotheriidae by Goldin and Startsev (2014); it was considered an invalid subgroup of Tranatocetidae by Gol'din and Steeman (2015); it was recombined as Adicetus vandelli by Figueiredo et al. (2024).
Synonymy list
| Year | Name and author |
|---|---|
| 1868 | Cetotherium vandelli Van Beneden and Gervais p. 273 |
| 1873 | Cetotherium (Cetotheriophanes) vandelli Brandt p. 158 |
| 1880 | Cetotherium vandellii Van Beneden and Gervais p. 273 figs. Pl. 17, Fig. 8 |
| 1898 | Plesiocetus vandellii Trouessart p. 1073 |
| 1902 | Aulocetus vandelli Capellini p. 250 |
| 1904 | Plesiocetus vandellii Trouessart p. 780 |
| 1940 | Metopocetus vandelli Kellogg p. 15 |
| 2011 | Metopocetus vandelli Marx p. 83 figs. Figure 2 |
| 2024 | Adicetus vandelli Figueiredo et al. p. 13 |
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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.
†Adicetus vandelli Van Beneden and Gervais 1868
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Figueiredo et al. 2024 | Small to medium-sized cetotheriid sharing with the other members of the family an elongated and convergent ascending process of the maxillae, nasals with posteriorly convergent edges and an enlarged compound posterior process of the tympanoperiotic with its facial sulcus floored by a posteroventral flange. Shares with all cetotheriids except Cephalotropis a wider than long temporal fossa; with all cetotheriids except Cephalotropis and Tiucetus the presence of a primary dorsal infraorbital foramen on the ascending processes of the maxillae; with all cetotheriids except Herpetocetus and Nannocetus the presence of a ventrally oriented postgle- noid process, in posterior view; with all cetotheriids except Herpetocetus, Nannocetus, Mithri- datocetus and Ciuciulea a well-developed conical process of the tympanic bulla; with all cetotheriids except Herpetocetus, Nannocetus, Kurdalagonus and Brandtocetus a facial sulcus running along the posterior margin of the compound posterior process. Further differs from all cetotheriids by having a pair of faint tubercles on the supraoccipital; from all cetotheriids except Piscobalaena by having a sigmoidal shaped suture between the maxillae and palatines; from Cephalotropis, Tiucetus, Joumocetus and Cetotherium by having a concave lateral profile of the facial region of the rostrum; from Cephalotropis, Tiucetus, Joumocetus, Ciuciulea, Mithri- datocetus and Metopocetus by having roughly parallel-sided ascending processes of the maxil- lae; from Cephalotropis, Tiucetus, Joumocetus and Ciuciulea for not having the parietal
exposed on the skull vertex; from Tiucetus, Tranatocetus, Cetotherium, Brandtocetus and Kur- dalagonus for lacking a squamosal prominence; from Herentalia, Kurdalagonus, Mithridatocetus, Piscobalaena, Cetotherium, Ciuciulea and Brandtocetus by lacking a well- defined external occipital crest; and from Tranatocetus, Metopocetus, Herpetocetus, Nannocetus and Piscobalaena for having a cylindrical shaped compound posterior process. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||