Protosireninae
Protosireninae
[‚prōd·ō·sə′ren·ə‚nē] (paleontology)
An extinct superfamily of sirenian mammals in the family Dugongidae found in the middle Eocene of Egypt.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.