@article {7691,
	title = {Theoretical morphology of hinge and shell form in Bivalvia: geometric constraints derived from space conflict between umbones},
	journal = {Paleobiology},
	volume = {26},
	number = {4},
	year = {2000},
	note = {PDF},
	pages = {606-624},
	keywords = {bivalvia, constraints, constructional morphology, ligament, mollusca, shell morphology, theoretical morphology},
	author = {Ubukata, Takao}
}
