@inbook {6021,
	title = {Invertebrate paleontology (excepting fusulinids and corals)},
	booktitle = {Upper Paleozoic of Peru},
	year = {1949},
	note = {DO NOT HAVEPls. 5-36No PterioideaUSNM Mollusk library},
	pages = {46-173},
	publisher = {USGS},
	organization = {USGS},
	address = {Fairbanks, AL},
	keywords = {bivalvia, fossil record, mollusca, permian},
	author = {Chronic, B. John},
	editor = {Newell, Norman D. and Chronic, B. John and Roberts, Thomas G.}
}
