Squalodelphinidae

Squalodelphinidae
Temporal range: ?late Chattian-Langhian,
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Suborder: Whippomorpha
Infraorder: Cetacea
Parvorder: Odontoceti
Superfamily: Platanistoidea
Family: †
Dal Piaz, 1917
Genera

Squalodelphinidae is a family of primitive platanistoid river dolphins, found in marine deposits in the eastern Pacific, western Atlantic, and Europe.[2]

Description

Distinguishing features of Squalodelphinidae include a moderately elongated and tapered rostrum, posterior cheek teeth being single-rooted but retaining accessory denticles, and marked skull asymmetry. Members of the family can be differentiated from the South Asian river dolphin by their shorter rostrum.[3]

References

  1. ^ Yoshihiro Tanaka and Ryohei Nakagawa. 2024. A New platanistoid (Odontoceti: Squalodelphinidae) from the Early Miocene of Japan. Journal of Systematic Palaeontology. 22(1); 2378783. DOI: doi.org/10.1080/14772019.2024.2378783
  2. ^ "Fossilworks: Squalodelphinidae". fossilworks.org.
  3. ^ O. Lambert, G. Bianucci, and M. Urbina. 2014. Huaridelphis raimondii, a new early Miocene Squalodelphinidae (Cetacea, Odontoceti) from the Chilcatay Formation, Peru. Journal of Vertebrate Paleontology 34(5):987-1004
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