Jeffords, Russell MacGregorMiller, Theo H.2008-05-012008-05-011968-01-260075-5044https://hdl.handle.net/1808/382114 p., 4 pl., 4 fig.Supplement available at: http://hdl.handle.net/1808/3843en-USOntogenetic development in Late Pennsylvanian crinoid columnals and pluricolumnalsArticleopenAccess