| 词条 | Tiucetus |
| 释义 |
| fossil_range = Tortonian ~{{fossil range|11|9}} | image = | image_alt = | image_caption = | taxon = Tiucetus | authority = Marx, Lambert & De Muizon 2017 | parent_authority = Marx, Lambert & De Muizon 2017 }} Tiucetus is an extinct genus of cetotheriid baleen whale known from the Late Miocene Pisco Formation of Peru. DescriptionTiucetus is distinct from other cetotheriids in having a 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]ClassificationTiucetus falls basally in Cetotheriidae, less derived than Joumocetus and Cephalotropis. PalaeogeographyOther 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|Neogene|Paleontology|Peru|Prehistoric mammals|Prehistory of South America}}1. ^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 {{Cetacea}}{{paleo-whale-stub}} 6 : Baleen whales|Prehistoric cetacean genera|Miocene mammals of South America|Neogene Peru|Fossils of Peru|Fossil taxa described in 2017 |
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