鯨偶蹄目 - Wikipedia
^ a b Claudine Montgelard, François M. Catzeflis, and Emmanuel Douzery, “ Phylogenetic relationships of artiodactyls and cetaceans as deduced from the comparison of cytochrome b and 12S rRNA mitochondrial sequences ,” Molecular Biology and Evolution, Volume 14, Issue 5, Society for Molecular Biology...
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