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Platyosphys aithai
Taxonomy
Platyosphys aithai was named by Gingerich and Zouhri (2015). Its type specimen is FSAC Bouj-6, a set of vertebrae (horacic vertebrae T1-T4), and it is a 3D body fossil. Its type locality is Gueran, which is in a Bartonian shallow subtidal sandstone in the Aridal Formation of Western Sahara. It is the type species of Antaecetus.
It was recombined as Pachycetus aithai by van Vliet et al. (2020); it was recombined as Antaecetus aithai by Gingerich et al. (2022).
It was recombined as Pachycetus aithai by van Vliet et al. (2020); it was recombined as Antaecetus aithai by Gingerich et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Platyosphys aithai Gingerich and Zouhri p. 278 figs. Figs. 8, 10F |
| 2020 | Pachycetus aithai van Vliet et al. p. 132 |
| 2022 | Antaecetus aithai Gingerich et al. p. 19 figs. Figs 3–6, 7A and 8A and 8B |
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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.
†Platyosphys aithai Gingerich and Zouhri 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. D. Gingerich et al. 2022 | Antaecetus has the distinctive pachyosteosclerotic vertebrae of pachycetine basilosaurids but differs from Pachycetus in being smaller and having a notably small cranium. The teeth are more gracile, with smooth rather than crenulated enamel. The first upper premolar, P1, differs from that in Pachycetus in being single-rooted. Posterior upper premolars differ from those of Pachycetus in having three rather than four accessory cusps or denticles flanking the central cusp anteriorly and posteriorly. Upper molars differ in retaining a distinct posteromedial expansion in the position formerly occupied by the protocone. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Uhen 2004 | |||||