eras y eones By teupai999 2500 BCE paleoproterozoico 4 sideriense 2300 BCE paleoproterozoico 3 riaciense 2050 BCE paleoproterozoico 2 orosiriense 1800 BCE paleoproterozoico 1 estateriense 1600 BCE mesoproterozoico3 calimiense 1400 BCE mesoproterozoico 2 ectasiense 1200 BCE mesoproterozoico 1 esteniense 1000 BCE neoproterozoico 3 toniense 850 BCE neoprotelozoico 2 criogeniense 630 BCE neoproterozoico 1 ediacariense