@article {6934,
	title = {Morphology, molecules, and the phylogenetics of cetaceans},
	journal = {Systematic Biology},
	volume = {47},
	number = {1},
	year = {1998},
	note = {PDF},
	pages = {90-124},
	keywords = {cetaceans, molecular characters, molecular clock, morphological characters, phylogeny, total evidence},
	author = {Messenger, Sharon L. and McGuire, Jimmy A.}
}
@article {6529,
	title = {Speciation on a conveyor belt: sequential colonization of the Hawaiian Islands by <i>Orsonwelles</i> spiders (Araneae, Linyphiidae)},
	journal = {Systematic Biology},
	volume = {52},
	number = {1},
	year = {2003},
	note = {PDF},
	pages = {70-88},
	keywords = {arthropoda, biogeography, combined data analyses, molecular clock, partitioned bremer support, phylogeny, poy, sensitivity, speciation},
	author = {Hormiga, Gustavo and Arnedo, Miquel and Gillespie, Rosemary G.}
}
@article {6517,
	title = {Historical biogeography, divergence times, and diversification patterns of bumble bees (Hymenoptera: Apidae: <i>Bombus</i>)},
	journal = {Systematic Biology},
	volume = {57},
	number = {1},
	year = {2008},
	note = {PDF},
	pages = {58{\textendash}75},
	keywords = {biogeography, insecta, molecular clock, phylogenetics},
	author = {Hines, Heather M.}
}
