Geologic Time Scale Flashcards
quaternary and tertiary periods make up the
Cenozoic era
creataceous, Jurassic, and Triassic periods make up the
Mesozoic era
the Permian, carboniferous, Devonian, Silurian, Ordovician, and Cambrian periods make up the
Paleozoic era
Pennsylvanian and mississipian make up the
carboniferous
Cenozoic, Mesozoic, and Paleozoic eras make up the
Phanerozoic eon
the neoproterozoic, mesoproterozoic, and the paleoproterozoic eras make up the
Proterozoic eon
the neoarchean, mesoarchean, paleoarchan, and eoarchean eras make up the
archean
the Proterozoic, archean, and hadean eons make up the
precambrain eon
years ago: 0-60 million
Cenozoic era
years ago: 60-250m
Mesozoic era
years ago: 250-550m
Paleozoic era
years ago: 0-550m
phanerozoic
years ago: 550-??m
precambrian
years ago: 550-1000m
neoproterozoic
years ago: 1000-1600m
mesoproterozoic