Stenian
Stenium was a period of Proterozoic and began about 1,200 million years ago and ended about 1,000 million years ago. With the Stenium ended the Mesoproterozoikum and the Neoproterozoic began.
Naming
The name is derived from the Greek Stenium stenos what " close " means. He is alluding to the many narrow, polymetamorphic orogeny belt that arose during this period.
Events during the Stenium
In the course of Steniums the supercontinent Rodinia formed (Russian, homeland ').