Tiucetus
Tiucetus is an extinct genus of cetotheriid baleen whale known from the Late Miocene Pisco Formation of Peru.
| Tiucetus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Infraorder: | Cetacea |
| Family: | Cetotheriidae Marx, Lambert & De Muizon 2017 |
| Genus: | †Tiucetus Marx, Lambert & De Muizon 2017 |
Description
Tiucetus is distinct from other cetotheriids in having a squamosal cleft; from eomysticetids in having comparatively short nasals, a more anteriorly projected supraoccipital and parietal, and a tympanic bulla that is rotated so that the inner posterior prominence faces dorsally.[1]
Classification
Tiucetus falls basally in Cetotheriidae, less derived than Joumocetus and Cephalotropis.
Palaeogeography
Other marine mammals found in the Pisco Formation include another cetotheriid, Piscobalaena, the odd dolphin Odobenocetops, the killer sperm whale Acrophyseter, the long-necked seal Acrophoca, and aquatic sloth Thalassocnus.
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References
- Marx, F., Lambert, O., de Muizon, C. 2017. A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids. Royal Society Open Science. doi: 10.1098/rsos.170560
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