@article {7351,
	title = {Muscle scars, shell form and torsion in Cambrian and Ordovician univalved mollusks},
	journal = {Lethaia},
	volume = {14},
	number = {4},
	year = {1981},
	note = {Times Cited: 31ArticleEnglishCited References Count: 61Nm256},
	pages = {311-322},
	keywords = {anatomy, bellerophont, cambrian, evolution, fossils, gastropoda, mollusca, monoplacophora, ordovician, paleontology},
	url = {<Go to ISI>://A1981NM25600007},
	author = {Runnegar, B.}
}
