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New Protocetid Whale from the Middle Eocene of Pakistan: Birth on Land, Precocial Development, and Sexual Dimorphism

BACKGROUND: 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 to land to rest. M...

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Detalles Bibliográficos
Autores principales: Gingerich, Philip D., ul-Haq, Munir, von Koenigswald, Wighart, Sanders, William J., Smith, B. Holly, Zalmout, Iyad S.
Formato: Texto
Lenguaje:English
Publicado: Public Library of Science 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2629576/
https://www.ncbi.nlm.nih.gov/pubmed/19194487
http://dx.doi.org/10.1371/journal.pone.0004366