@article{MolluscaBase:SourceID:138439, author = {Wood, S. V.}, journal = {Monograph of the Palaeontographical Society of London}, title = {A Monograph of the Crag Mollusca or, descriptions of shells from the middle and upper tertiaries of the east of England. Part 1. Univalves}, url = {http://www.biodiversitylibrary.org/item/67729}, year = {1848} }