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Protosirenidae Temporal range: Middle Eocene–Late Eocene PreꞒ Ꞓ O S D C P T J K Pg N
The skeleton of Protosiren
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Sirenia
Family:	†Protosirenidae Sickenberg, 1934
Genera
Ashokia Libysiren Protosiren

Protosirenidae is an extinct primitive family of the order Sirenia.

Protosirenids are thought to have been amphibious quadrupeds, meaning that they spent their time both on land and in the water and had four legs.

See also

• Dugongidae
• Evolution of sirenians
• Manatee

References

1. D. P. Domning, G. J. Heal, and S. Sorbi. 2017. Libysiren sickenbergi, gen. et sp. nov.: a new sirenian (Mammalia, Protosirenidae) from the middle Eocene of Libya. Journal of Vertebrate Paleontology 37(2):e1299158
2. "Fossilworks: Protosirenidae".
3. Berta, Annalisa; Sumich, James; Kovacs, Kit (2005). Sirenian and Other Marine Mammals: Evolution and Systematics (PDF) (2nd ed.). Elsevier Science. pp. 89–110. ISBN 9780120885527. Retrieved 15 July 2018. {{cite book}}: |work= ignored (help)

External links

• Protosiren at The Paleobiology Database.

v t e Sirenian genera
Kingdom: Animalia Phylum: Chordata Class: Mammalia Superorder: Afrotheria Clade: Paenungulata
Sirenia	†Eosiren †Eotheroides †Prototherium †Sobrarbesiren †Prorastomidae Pezosiren Prorastomus †Protosirenidae Ashokia Libysiren Protosiren Trichechidae †Miosireninae Anomotherium Miosiren Trichechinae †Potamosiren †Ribodon Trichechus Dugongidae †Anisosiren †Caribosiren †Halitherium †Indosiren †Lentiarenium †Kaupitherium †Metaxytherium †Paralitherium †Priscosiren †Prohalicore †Stegosiren †Sirenavus †Hydrodamalinae Dusisiren Hydrodamalis Dugonginae †Bharatisiren †Callistosiren †Crenatosiren †Corystosiren †Culebratherium †Dioplotherium †Domningia Dugong †Italosiren †Kutchisiren †Nanosiren †Norosiren †Rytiodus †Xenosiren

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