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Taxonomy
Africanacetus was named by Bianucci et al. (2007).
It was assigned to Ziphiidae by Berta (2017); and to Hyperoodontinae by Bianucci et al. (2007), Lambert et al. (2009), Bianucci et al. (2010), Goldin and Vishnyakova (2013), Lambert et al. (2013), Marx et al. (2016), Lambert and Louwye (2016), Ichishima et al. (2017), Lambert et al. (2018) and Bianucci et al. (2024).
It was assigned to Ziphiidae by Berta (2017); and to Hyperoodontinae by Bianucci et al. (2007), Lambert et al. (2009), Bianucci et al. (2010), Goldin and Vishnyakova (2013), Lambert et al. (2013), Marx et al. (2016), Lambert and Louwye (2016), Ichishima et al. (2017), Lambert et al. (2018) and Bianucci et al. (2024).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2007 | Africanacetus Bianucci et al. p. 583 |
| 2009 | Africanacetus Lambert et al. p. 919 figs. Fig. 10 |
| 2010 | Africanacetus Bianucci et al. p. 1093 figs. Figure 14 |
| 2013 | Africanacetus Goldin and Vishnyakova p. 446 |
| 2013 | Africanacetus Lambert et al. p. 588 figs. FIgure 14 |
| 2016 | Africanacetus Lambert and Louwye figs. Figure 3 |
| 2016 | Africanacetus Marx et al. p. 130 |
| 2017 | Africanacetus Berta p. 162 |
| 2017 | Africanacetus Ichishima et al. |
| 2018 | Africanacetus Lambert et al. p. 143 |
| 2024 | Africanacetus Bianucci et al. p. 32 |
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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.
G. †Africanacetus Bianucci et al. 2007
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†Africanacetus ceratopsis Bianucci et al. 2007
†Africanacetus gracilis Ichishima et al. 2017
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. Ichishima et al. 2017 | Africanacetus differs from all other Hyperoodontinae in having unique combination of characters as follows: 1) the dome-like rostral maxillary crest extending onto the supraorbital process of frontal, which slopes gradually toward the lateral margin of the orbit; 2) the nasal process of the premaxilla constricted ventral to the premaxillary crest; 3) the premaxillary crests significantly asymmetrical in size, the right being much larger than the left; 4) the premaxillary crest being thick and posterolaterally directed; 5) between the maxilla and the nasal the posterior projection of the premaxilla contacts the frontal on the vertex; 6) proportionally large nasals, by which the premaxillary crests are widely separated; 7) right nasal significantly larger than the left; 8) the anterior margin of nasal, which does not extend anteriorly beyond the anterior margin of the premaxillary crest; 9) presence of a foramen at the back of the premaxillary crest at the boundary between the maxilla and the premaxilla, which might be called, as discussed later, the posterior accessory foramen, the intra-premaxillary foramen, or the additional dorsal infraorbital foramen; 10) a distinct maxillary tubercle separating the antorbital notch from the prominential notch; 11) the mesorostral groove completely filled by the vomer, which is more elevated than the premaxilla over its complete length; 12) the rostrum higher than wide; and 13) the rostrum with vestigial alveolar groove. |
Measurements
No measurements are available
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| Source: f = family, subo = suborder, o = order | |||||
| References: Nowak 1991, Uhen 2004 | |||||
Age range: Zanclean or 5.33300 to 3.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Neogene | Indian Ocean | A. sp. (149814) | |
| Middle Miocene - Pliocene | South Africa | A. ceratopsis (77208) | |
| Late/Upper Miocene - Holocene | French Southern Territories | A. ceratopsis (192395) | |
| Zanclean | Brazil | A. gracilis (183433) |