@article {536,
	title = {The Araucarioxylon arizonicum trees of the Petrified Forest. National Park, Arizona, USA},
	journal = {Palaeontology },
	volume = {43 },
	year = {2000},
	pages = {15-28},
	chapter = {15},
	author = {Ash, S.R. and Creber, G.T.}
}
