TY - BOOK T1 - Maryland Geological Survey. Upper Cretaceous Y1 - 1916 A1 - Gardner, J. KW - Cretaceous KW - Maryland KW - Monmouth Formation KW - USA CY - Baltimore UR - http://www.biodiversitylibrary.org/ia/marylandgeo611916mary ER - TY - CHAP T1 - Miocene. Mollusca. Gastropoda T2 - Maryland Geological Survey. Miocene Y1 - 1904 A1 - Martin, G.C. KW - Maryland KW - Miocene KW - USA JF - Maryland Geological Survey. Miocene VL - 2 UR - http://www.biodiversitylibrary.org/bibliography/15918 ER -