Time factors of differentially preserved wood in two calcitic concretions in Pennsylvanian black shale from Indiana / Bertram G. Woodland -- and Catherine K. Richardson --.

v.33:no.10(1975)

A new Pareumys (Rodentia: cylindrodontidae) from the Duchesne River Formation, Utah / [by] Craig C. Black --

v.16:no.17(1970)