''Brandtocetus'' is a genus of cetotheriid

mysticete Baleen whales (), also known as whalebone whales, are marine mammals of the parvorder Mysticeti in the infraorder Cetacea (whales, dolphins and porpoises), which use baleen plates (or "whalebone") in their mouths to sieve plankton from the water ...

in the subfamily Cetotheriinae. The type and only species is ''Brandtocetus chongulek'' from the late

Miocene The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...

(Tortonian) of the

Kerch Kerch, also known as Keriç or Kerich, is a city of regional significance on the Kerch Peninsula in the east of Crimea. It has a population of Founded 2,600 years ago as the Colonies in antiquity#Greek colonies, ancient Greek colony Pantik ...

Peninsula in Crimea. ''Brandtocetus chongulek'' was a whale approximately 4–5 m long differing from all Cetotheriidae by having a transversely expanded lateral portion of the

squamosal bone The squamosal is a skull bone found in most reptiles, amphibians, and birds. In fishes, it is also called the pterotic bone. In most tetrapods, the squamosal and quadratojugal bones form the cheek series of the skull. The bone forms an ancestral ...

; a rhomboid

temporal fossa The temporal fossa is a fossa (shallow depression) on the side of the skull bounded by the temporal lines above, and the zygomatic arch below. Its floor is formed by the outer surfaces of four bones of the skull. The fossa is filled by the te ...

; an occipital shield extending anterior to the center of the temporal fossa; and an elongated posterior process of the tympanoperiotic with a proximodistally extended, and distally expanded, distal portion exposed as an oval surface on the posterolateral skull wall.

References

{{Taxonbar, from=Q21795316 Cetotheriidae Miocene cetaceans Monotypic prehistoric cetacean genera Fossil taxa described in 2014 Miocene mammals of Europe