Tonian (1 янв 1000000000 г. до нашей эры – 1 янв 720000000 г. до нашей эры)
Описание:
The Tonian is the first geologic period of the Neoproterozoic Era. It lasted from 1000 to 720 Mya. Instead of being based on stratigraphy, these dates are defined by the ICS based on radiometric chronometry. The Tonian is preceded by the Stenian Period of the Mesoproterozoic Era and followed by the Cryogenian.Добавлено на ленту времени:
Дата:
1 янв 1000000000 г. до нашей эры
1 янв 720000000 г. до нашей эры
~ 5883516 years