@article {568,
	title = {A review of fossil cycad megasporophylls, with new evidence of Crossazamia Pomel and its associated leaves from the Lower Permian of Taiyuan, China},
	journal = {Review of Palaeobotany and Palynology},
	volume = {60},
	year = {1989},
	pages = {205-233},
	chapter = {205},
	author = {Gao, Z. and Thomas, B.A.}
}
