%0 Journal Article %J American Midland Naturalist %D 1947 %T Cayugoceras, an Upper Silurian Cephalopod %A Flower, R. H. %K paleontology %B American Midland Naturalist %V 37 %P 250-255 %G eng %U http://www.jstor.org/stable/2421653 %R 10.2307/2421653