@article {6874,
	title = {Early oysters and their supposed Permian ancestors},
	journal = {Palaeogeography, Palaeoclimatology, Palaeoecology},
	volume = {229},
	year = {2005},
	note = {PDF},
	pages = {127-136},
	keywords = {aviculopectinidae, bivalvia, evolution, mollusca, ostreidae, oysters, permian, prospondylidae, prospondylus, pseudomonotidae},
	author = {M{\'a}rquez-Aliaga, Ana and Jim{\'e}nez-Jim{\'e}nez, Antonio Pablo and Checa, Antonio G. and Hagdorn, Hans}
}
@article {6004,
	title = {Rib fabrication in Ostreoidea and Plicatuloidea (Bivalvia, Pteriomorphia) and its evolutionary significance},
	journal = {Zoomorphology},
	volume = {122},
	year = {2003},
	note = {PDF},
	pages = {145-159},
	keywords = {anatomy, bivalvia, character evolution, evolution, growth, mollusca, ontogeny, ostreoidea, paleontology, plicatuloidea, shell morphology},
	author = {Checa, Antonio G. and Jim{\'e}nez-Jim{\'e}nez, Antonio Pablo}
}
