Stewart, R. B. (1930). Gabb's California Cretaceous and Tertiary type lamellibranchs. <em>Academy of Natural Sciences of Philadelphia, Special Publications.</em> 3: 1-314, pls 1-17., available online athttps://babel.hathitrust.org/cgi/pt?id=uc1.31822011360963&seq=7 page(s): 185 [details]
original descriptionStewart, R. B. (1930). Gabb's California Cretaceous and Tertiary type lamellibranchs. <em>Academy of Natural Sciences of Philadelphia, Special Publications.</em> 3: 1-314, pls 1-17., available online athttps://babel.hathitrust.org/cgi/pt?id=uc1.31822011360963&seq=7 page(s): 185 [details]