@article {7384,
	title = {<i>Barbatia mytiloides</i> and the evolution of shell torsion in arcid pelecypods},
	journal = {Lethaia},
	volume = {14},
	year = {1981},
	pages = {143-150},
	keywords = {arcidae, barbatia, bivalvia, functional morphology, mollusca, paleoecology, paleontology, shell morphology},
	author = {Savazzi, Enrico}
}
@article {6910,
	title = {Analysis of the shell torsion phenomenon in the Bivalvia},
	journal = {Lethaia},
	volume = {11},
	year = {1978},
	pages = {315-329},
	keywords = {arcidae, bakevelliidae, bivalvia, ecology, fossils, functional morphology, mollusca, morphogenesis, paleontology, shell morphology, theoretical morphology},
	author = {McGhee, George R., Jr}
}
