@article {6603,
	title = {Middle Ordovician (Caradoc) pelecypods from the Advance Formation, British Columbia},
	journal = {Geological Survey of Canada, Bulletin 491},
	year = {1996},
	note = {Pls.1-3},
	pages = {113-129},
	keywords = {biogeography, bivalvia, fossils, mollusca, ordovician, paleontology},
	author = {Johnston, Paul A.}
}
