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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Zygiocetus was named by Tarasenko (2014). Its type is Zygiocetus nartorum.
It was assigned to Cetotheriidae by Marx et al. (2016), Berta (2017); and to Cetotheriinae by Tarasenko (2014), Goldin and Startsev (2017).
It was assigned to Cetotheriidae by Marx et al. (2016), Berta (2017); and to Cetotheriinae by Tarasenko (2014), Goldin and Startsev (2017).
Species
Z. nartorum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Zygiocetus Tarasenko p. 551 figs. Plates 16 & 17 |
| 2016 | Zygiocetus Marx et al. p. 110 |
| 2017 | Zygiocetus Berta p. 168 |
| 2017 | Zygiocetus Goldin and Startsev |
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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 | |
|---|---|---|
| K. K. Tarasenko 2014 | Mediumsized Cetotheriinae, about 3–4.5 m long. Supraoccipital wide, shaped as extended isosceles triangle with arched lateral sides; its anterior end lying in line with middle or anterior one third of temporal fossae. Lambdoid crests slightly arched. Zygomatic bones short, with wide base and slightly medially curved anterior end. Anterior process of petrosal flattened dorsoventrally, hooked, formed of dorsoventrally flattened triangular blade. Posterolat eral projection of posterior process of petrosal on lat eral skull wall in shape of ellipse truncated at upper end, not forming flat even surface. Dorsal part of pet rosal body oval. Endolymphatic and perilymphatic foramina wide circular, fused into integral oval aper ture. Lateral edge of petrosal body slightly wrinkled and having weak longitudinal crest. Tympanic bulla auriculate, with strongly inflated anteromedial edge and oblique dorsolateral edge. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| Reference: Uhen 2004 | |||||
Age range: Messinian or 7.24600 to 5.33300 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Miocene | Ukraine | Z. sp. (211305) | |
| Messinian | Russian Federation (Adygea) | Cetotherium sp. (166428) |