Life on the Earth

according ages ancient animals appear atmosphere beds belong Brachiopoda British called Cenozoic Cephalopoda character classes climate compared continual creation Crustacea dependent deposits direction distribution earlier earliest earth effect equal evidence examples existing extend fact families feet Fishes force forms fossil Gasteropoda genera geological given gives greater groups growth heat hypothesis idea influence kind known land laws less limited living Lower marine mass means measure Mesozoic Mollusca nature nearly observed occur ocean Oolitic organic origin Paleozoic perhaps period plants plants and animals Pleistocene present probably produced proportion races range recent regard regions remains remarkable represented require result rivers rocks scale sediments shells similar species Strata structure succession suppose surface temperature Tertiary thickness tion traced Upper variations variety varying waste whole zone Zoophyta