@article {7484,
	title = {Paleontological data and molecular phylogenetic analysis},
	journal = {Paleobiology},
	volume = {20},
	number = {3},
	year = {1994},
	note = {PDF},
	pages = {259-273},
	keywords = {fossil record, molecular clock, paleontology, phylogenetics, stratigraphy},
	author = {Smith, Andrew B. and Littlewood, D. T. J.}
}
