Protosirenidae
Sign in to saveProtosirenidae is an extinct primitive family of the order Sirenia.
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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.
Excerpted from Wikipedia’s “Protosirenidae” article, available under the CC BY-SA 4.0 licence.