@article {1392,
	title = {Validation of the names Emporiaceae, Emporia, and Emporia lockardii},
	journal = {Taxon},
	volume = {52},
	year = {2003},
	month = {05/2003},
	pages = {327{\textendash}328},
	author = {Mapes, Gene and Rothwell, Gar W.}
}
@article {29,
	title = {Hanskerpia gen. nov. and phylogenetic relationships among the most ancient conifers (Voltziales)},
	journal = {Taxon},
	volume = {54},
	year = {2005},
	month = {08/2005},
	pages = {733-750},
	chapter = {733},
	url = {http://www.geologia.unam.mx/igl/deptos/paleo/hernandezcg/pdf/pdf9.pdf},
	author = {Rothwell, Gar W. and Mapes, Gene and Hernandez-Castillo, Genaro R.}
}
