| Tiucetus | |
|---|---|
.jpg) | |
| Holotype skull in lateral view | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Suborder: | Whippomorpha |
| Infraorder: | Cetacea |
| Family: | Cetotheriidae |
| Genus: | †Tiucetus Marx, Lambert & De Muizon 2017 |
Tiucetus is an extinctgenus ofcetotheriidbaleen whale known from the Late MiocenePisco Formation ofPeru.
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]
Tiucetus falls basally in Cetotheriidae, less derived thanJoumocetus andCephalotropis.
Other marine mammals found in the Pisco Formation include another cetotheriid,Piscobalaena, the odd dolphinOdobenocetops, the killer sperm whaleAcrophyseter, the long-necked sealAcrophoca, and aquaticslothThalassocnus.
