Techniques for processing and photographing chitinozoans Techniques for processing and photographing chitinozoans
Ontogenetic development in Late Pennsylvanian crinoid columnals and pluricolumnals Ontogenetic development in Late Pennsylvanian crinoid columnals and pluricolumnals
Stratigraphic significance of uvigerinid foraminifers in the Western Hemisphere Stratigraphic significance of uvigerinid foraminifers in the Western Hemisphere