@article {7061,
	title = {Permian reef complex, Tunisia},
	journal = {Brigham Young University Geology Studies},
	volume = {23},
	number = {1},
	year = {1976},
	note = {reprint},
	pages = {75-112},
	keywords = {bakevellia, bakevelliidae, ecology, fossil record, geology, mollusca, paleoecology, paleozoic, permian, pterioida, pterioidea, reef, stratigraphy},
	author = {Newell, Norman D. and Rigby, J. Keith and Driggs, Allan and Boyd, Donald W. and Stehli, Francis G.}
}
@article {6295,
	title = {When bivalves took over the world},
	journal = {Paleobiology},
	volume = {33},
	number = {3},
	year = {2007},
	note = {PDF},
	pages = {397-413},
	keywords = {bivalvia, ecology, escalation, mass extinction, paleoecology, permian, triassic},
	author = {Fraiser, Margaret L. and Bottjer, David J.}
}
