@inbook {6436,
	title = {Lamellibranchiata I, descriptions and figures of the Monomyaria of the upper Helderberg, Hamilton and Chemung groups},
	booktitle = {New York State Geological Survey, Paleontology (Natural History of New York)},
	volume = {5, part 1},
	year = {1884},
	pages = {1-268},
	author = {Hall, James}
}
@inbook {1210,
	title = {Lamellibranchiata I, descriptions and figures of the Monomyaria of the upper Helderberg, Hamilton and Chemung groups},
	booktitle = {New York State Geological Survey, Paleontology (Natural History of New York)},
	volume = {5, part 1},
	year = {1884},
	pages = {1-268},
	author = {Hall, James}
}
