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Brabocetus
Taxonomy
Brabocetus was named by Colpaert et al. (2015). Its type is Brabocetus gigaseorum. It was considered monophyletic by Colpaert et al. (2015).
It was assigned to Phocoenidae by Colpaert et al. (2015), Marx et al. (2016).
It was assigned to Phocoenidae by Colpaert et al. (2015), Marx et al. (2016).
Species
B. gigaseorum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Brabocetus Colpaert et al. p. 2 |
| 2016 | Brabocetus Marx et al. p. 138 |
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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 | |
|---|---|---|
| W. Colpaert et al. 2015 | Brabocetus gigaseorum sp. nov. has a cranium intermediate in size between that of the extant species Neophocaena phocaenoides and Phocoenoides dalli. It differs from all other phocoenids except Septemtriocetus in having a frontal boss that is longer than wide. It differs from all other phocoenids except Haborophocoena in the anteromedial sulcus being shorter than the posteromedial sulcus. It possibly differs from all extinct phocoenids except Miophocaena in the presence of an additional longitudinal sulcus across the premaxillary eminences. It differs from all phocoenids except Haborophocoena, Miophocaena, Piscolithax tedfordi, and Septemtriocetus, in that the level of the anterior margin of the bony nares is in line with the postorbital process of the frontal; from all other phocoenids except Haborophocoena, Miophocaena, Neophocaena, Piscolithax tedfordi, and Septemtriocetus in that the first anterior dorsal infraorbital foramen is distinctly posterior to the antorbital notch; from Haborophocoena, Miophocaena, Numataphocoena, Piscolithax spp., Pterophocaena, Semirostrum, and Septemtriocetus in the anterolaterally widely-open antorbital notch, not laterally limited by an extension of the antorbital process; and from extant phocoenids in a more pronounced asymmetry of the vertex, with medial sutures more distinctly shifted to the left side. It further differs from the other North Sea fossil phocoenid Septemtriocetus in that it possesses: an anteriorly longer pterygoid sinus fossa, reaching the level of the antorbital notch; a higher premaxillary eminence, overhanging the posterolateral sulcus; a significantly transversely narrower frontal boss; a lower, not dorsally pointed temporal fossa; a deeper and longer squamosal fossa; and a postglenoid process of the squamosal being thickened in lateral view. |