@article {7527,
	title = {Paleontology of the Eocene Bateque Formation, Baja California Sur, Mexico},
	journal = {Contributions in Science},
	volume = {434},
	year = {1992},
	note = {reprint},
	pages = {1-55},
	keywords = {bivalvia, cenozoic, cubitostrea, eocene, exputens, fossil record, malleidae, mollusca, nayadina, ostreidae, ostreoidea, pinna, pinnidae, pinnoidea, pterioidea, stratigraphy, taxonomy},
	author = {Squires, Richard L. and Demetrion, Robert A.}
}
@article {6980,
	title = {Tertiary marine pelecypods of California and Baja California: Nuculidae through Malleidae},
	journal = {Geological Survey Professional Paper},
	volume = {1228-A},
	year = {1983},
	note = {Pls.1-27Have: Pinnoidea: A78-A81; Pterioidea, A81-A87; Introductions (with maps), A1-A5; localities, A87-A91; Bibliography, A91-A98; plates 21-26},
	pages = {A1-A108},
	keywords = {atrina, biogeography, bivalvia, cenozoic, exputens, fossils, isognomon, isognomonidae, malleidae, mollusca, nayadina, pachyperna, paleontology, pinctada, pinna, pinnidae, pinnoidea, Pteria, pteriidae, pterioida, pterioidea, pulvinites, pulvinitidae, tertiary, vulsella},
	author = {Moore, Ellen James}
}
