*Shimamura, M. et al. 1997. Molecular evidence from retroposons that whales form a clade within even-toed ungulates. Nature 388:666-670. |PDF|
Sasaki, T. et al. 2005. Mitochondrial phylogenetics and evolution of mysticete whales. Systematic Biology 54:77-90. |PDF|
Nikaido, M. et al. 2006. Baleen Whale Phylogeny and a Past Extensive Radiation Event
Revealed by SINE Insertion Analysis. Molecular Biology and Evolution 23:866-879. |PDF| |