geologic time scale
pl: geologic time scales
Related Words
aeoneraperiodepochagechronostratigraphystratigraphystratumsedimentrockfossilpaleontologygeologychronologydatingisotopehalf lifecarbon datingextinctionevolutionspeciationbiodiversityplate tectonicscontinental driftsupercontinentglaciationice agevolcanismmagmalavaerosiondepositionlithificationmetamorphismmineralcrystalbedrockoutcropunconformityboundaryhorizonindex fossilbiostratigraphygeochronologymillenniumepochalprimordialancientprehistoric