div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Indiana Geological and Water Surveytrilobite body is divided laterally into threc main parts: cephalon head segmented thorax and pygidium tail However the name trilobite meaning src=https:reader035vdocumentinreader035viewer20220711125fe81d4a1c4f680a505d4f9ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: Indiana Geological and Water Surveytrilobite body is divided laterally into threc main parts: cephalon head segmented thorax and pygidium tail However the name trilobite meaning src=https:reader035vdocumentinreader035viewer20220711125fe81d4a1c4f680a505d4f9ehtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv