This article's factual accuracy may be compromised due to out-of-date information. (July 2017)
Eosiren is an extinct genus of sea cow that lived during the Late Eocene (later Priabonian) to Early Oligocene (Rupelian). Several fossils have been found in Egypt. It seems like the species E. abeli were contemporaneous with Protosiren and Eotheroides. like them, Eosiren closely resembled modern sirenians. It differes from them by having somewhat larger innominates and possess thigh bones.
Temporal range: Late Eocene-Oligocene
|Skull of E. libyca .|
Eosiren was first described by vertebrage paleontologist Charles William Andrews in 1902, who distinguished it from the genus Halitherium due to differences in the teeth and mandible. Later that year, Science published a summary of his findings in a collection on advances in zoopaleontology.
- Zalmout I.S. & Gingerich P.D. (2012), “Late Eocene sea cows (Mammalia, Sirenia) from Wadi al Hitan in the western desert of Fayum, Egypt”, University of Michigan Papers on Paleontology No. 37
- Andrews, C. W. (1902). "II.—Preliminary Note on some Recently Discovered Extinct Vertebrates from Egypt. (Part III.)" (PDF). Geological Magazine. 9 (7): 291. doi:10.1017/S0016756800181178.
- Osborn, H. F. (31 October 1902). "Recent Zoopaleontology". Science. 16 (409): 715. Retrieved 27 January 2021.