@article {7796,
	title = {Bivalve ecology in a Silurian shelf environment},
	journal = {Lethaia},
	volume = {11},
	year = {1978},
	pages = {41-56},
	keywords = {actinopteria, bivalvia, ecology, functional morphology, leptodesma, mollusca, paleoecology, paleontology, Pterineidae, pterioidea, pteronitella, ptychopteria, silurian},
	author = {Watkins, Rodney}
}
@article {1680,
	title = {Bivalve ecology in a Silurian shelf environment},
	journal = {Lethaia},
	volume = {11},
	year = {1978},
	pages = {41-56},
	keywords = {actinopteria, bivalvia, ecology, functional morphology, leptodesma, mollusca, paleoecology, paleontology, Pterineidae, pterioidea, pteronitella, ptychopteria, silurian},
	author = {Watkins, Rodney}
}
