CARBON ISOTOPE CHANGE AS AN INDICATOR OF BIOMASS FLUX AND AN AID TO CORRELATION DURING LUDENSIS–NILSSONI (SILURIAN) TIME; pp. 173–181

WENLOCKIAN AND LUDLOVIAN SEDIMENTARY AND BIOTIC EVENTS IN THE MIDWESTERN CRATONIC AREA, U. S. A.; pp. 182–192

BENTHIC BRACHIOPOD COMMUNITY CHANGES THAT REFLECT SILURIAN BIOEVENTS; pp. 193–197

TRILOBITE FAUNAL CHANGES IN THE EAST BALTIC SILURIAN; pp. 198–204

VERTEBRATE HISTORY IN THE LATE SILURIAN; pp. 205–214

CHITINCZOAN DIVERSITY DYNAMICS IN THE EAST BALTIC SILURIAN; pp. 215–224