Bibliografia
Arnason, U., Gullberg, A., & Janke, A. (2004). Mitogenomic analyses provide new insights into cetacean origin and evolution. Gene 333: 27-34.
Darwin, C. (1895). On the Origin of Species. (A Facsimile of the First Edition Edition, 2001). Harvard University Press.
Fitch, W. M. e Ayala, F. J. (1995). Tempo and Mode in Evolution: Genetics and Paleontology 50 Years After Simpson. National Academy Press.
Gatesy, J. (1997). More DNA support for a Cetacea/Hippopotamidae clade: the blood-clotting protein gene gamma-fibrinogen. Molecular Biology and Evolution 14: 537-543.
Gatesy, J., Milinkovitch, M., Waddell, V., e Stanhope, M. (1999). Stability of cladistic relationships between Cetacea and higher-level Artiodactyl taxa. Systematic Biology 48: 6-20.
Gingerich, P. D. (2003). Land-to-sea transition in early whales: evolution of Eocene Archaeoceti (Cetacea) in relation to skeletal proportions and locomotion of living semiaquatic mammals. Paleobiology 29: 429-454.
Gingerich, P. D. (2005). Cetacea. In The Rise of Placental Mammals: Origins and Relationships of the Major Extant Clades. Rose, K. D. e Archibald, J. D. (Ed.). The Johns Hopkins University Press.
Gingerich, P. D., Haq, M. u., Zalmout, I. S., Khan, I. H., e Malkani, M. S. (2001). Origin of Whales from Early Artiodactyls: Hands and Feet of Eocene Protocetidae from Pakistan. Science 293: 2239-2242.
Gingerich, P. D., Smith, B. H., e Simons, E. L. (1990). Hind Limbs of Eocene Basilosaurus: Evidence of Feet in Whales. Science 249: 154-157.
Gingerich, P. D., Wells, N. A., Russell, D. E., e Shah, S. M. I. (1983). Origin of Whales in Epicontinental Remnant Seas: New Evidence from the Early Eocene of Pakistan. Science 220: 403-406.
Gingerich, P. D., Zalmout, I. S., Ul-Haq, M., e Bhatti, M. A. (2005). Makaracetus Bidens, a New Protocetid Archaeocete (Mammalia, Cetacea) from the Early Middle Eocene of Balochistan (Pakistan). Contributions from the Museum of Paleontology 31: 197-210.
Lusseau, D. (2003). The emergence of cetaceans: phylogenetic analysis of male social behaviour supports the Cetartiodactyla clade. Journal of Evolutionary Biology 16: 531-535.
Thewissen, J. G. M. e Williams, E. M. (2002). The Early Radiations of Cetacea (Mammalia): Evolutionary Pattern and Developmental Correlations. Annual Review of Ecology and Systematics 33: 73-90
Thewissen, J. G. M., Williams, E. M., Roe, L. J. , e Hussain, S. T. (2001). Skeletons of terrestrial cetaceans and the relationship of whales to artiodactyls. Nature 413: 277-281.