@article {7075,
	title = {The fossil record and evolution: comparing cladistic and paleontologic evidence for vertebrate history},
	journal = {Science},
	volume = {255},
	number = {5052},
	year = {1992},
	note = {PDF},
	pages = {1690-1693},
	keywords = {cladistics, fossil record, phylogenetics, stratigraphy, vertebrata},
	author = {Norell, Mark A. and Novacek, Michael J.}
}
