Takikawa sea cow

Extinct herbivorous marine mammal From Wikipedia, the free encyclopedia

Takikawa sea cow

The Takikawa sea cow (Hydrodamalis spissa) is an extinct herbivorous marine mammal of the Late Pliocene which was closely related to the recently extinct Steller's sea cow (H. gigas). In 1988, fossils of sea cows were discovered in Hokkaido and were originally assigned to the Takikawa sea cow,[1] a newly described species, even though this taxon is thought of by some scientists as a synonym of the Cuesta sea cow (H. cuestae). It is uncertain whether or not the Takikawa sea cow was simply a local variant of the Cuesta sea cow or a completely separate lineage.[1][2][3] However, the Steller's sea cow and Takikawa sea cow share more morphological similarities than the Takikawa sea cow and Cuesta sea cow.[4]

Relations within Hydrodamalinae
Sirenia
Based on a 2004 study by Hitoshi Furusawa[4]

Quick Facts Scientific classification, Binomial name ...
Takikawa sea cow
Temporal range: Late Pliocene 3.6–2.6 Ma
Reconstructed skeleton, Sapporo
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Sirenia
Family: Dugongidae
Genus: Hydrodamalis
Species:
H. spissa
Binomial name
Hydrodamalis spissa
Furusawa, 1988
Synonyms

?†H. cuestae Domning, 1978

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References

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