172.70.162.88
Created page with "thumb|230px|Three small [[ammonite fossils, each about 1.5 cm across]] thumb|230px|A fossil of a [[trilobite which lived about 444 million years ago]] thumb|right|230px| Lower [[Proterozoic stromatolites from Bolivia, South America. These were produced by cyanobacteria. Polished vertical slice through rock]] thumb|230px|A [[mosquito..."