Tiucetus
{{Short description|Extinct genus of whales}}
{{Automatic taxobox
| fossil_range = Tortonian
~{{fossil range|11|9}}
| image = Tiucetus holotype skull (lateral view).jpg
| image_caption = Holotype skull in lateral view
| taxon = Tiucetus
| authority = Marx, Lambert & De Muizon 2017
}}
Tiucetus is an extinct genus of cetotheriid baleen whale known from the Late Miocene Pisco Formation of Peru.
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.Marx, F., Lambert, O., de Muizon, C. 2017. [https://www.ncbi.nlm.nih.gov/pubmed/28989761 A new Miocene baleen whale from Peru deciphers the dawn of cetotheriids.] Royal Society Open Science. doi: 10.1098/rsos.170560
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.
References
{{Portal|Cetaceans|Paleontology|Peru|Prehistoric mammals}}
{{Reflist}}
{{Cetacea}}
{{Mysticeti Genera|M.|state=collapsed}}
{{Taxonbar|from=Q48842174}}
Category:Monotypic prehistoric cetacean genera
Category:Miocene mammals of South America
Category:Fossil taxa described in 2017
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