Post History
The earliest Metazoa originate between 800mya and 750mya, so anywhere from 80my to 30my prior to the beginning of the Cryogenian. The occurrence of snowball periods is likely not a factor in their...
Answer
The earliest Metazoa originate between 800mya and 750mya, so anywhere from 80my to 30my prior to the beginning of the Cryogenian. The occurrence of snowball periods is likely not a factor in their...