New protocetid whale from the middle eocene of pakistan: birth on land, precocial development, and sexual dimorphism.

<h4>Background</h4>Protocetidae are middle Eocene (49-37 Ma) archaeocete predators ancestral to later whales. They are found in marine sedimentary rocks, but retain four legs and were not yet fully aquatic. Protocetids have been interpreted as amphibious, feeding in the sea but returning...

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Bibliographic Details
Main Authors: Philip D Gingerich, Munir Ul-Haq, Wighart von Koenigswald, William J Sanders, B Holly Smith, Iyad S Zalmout
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2009-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/19194487/?tool=EBI