According to the information in Encyclopedia Britannica (2015) on fossil records, which of the following was the least severe of the five major extinctions of life on earth?

Devonian extinction

Explanation:

That took place in 375 to 360 million years ago and is estimated to have killed at least 19% of the life in the families and the 50% of the genera of species. and at least 70% of the species on earth.