Protosirenidae

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.^[1][2]

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.^[3]