@inbook {6983,
	title = {On the origin of the Bivalvia},
	booktitle = {The origin of major invertebrate groups},
	series = {Systematics Association Special Volume 12},
	year = {1979},
	note = {xerox},
	pages = {381-413},
	publisher = {Publisher: Academic Press},
	organization = {Publisher: Academic Press},
	address = {London and New York},
	keywords = {bivalvia, evolution, ligament, mollusca, paleontology, phylogeny},
	author = {Morris, N. J.},
	editor = {House, M. R.}
}
