Fact 1: Macroevolution is evolution over geologic time above the level of the species.

Fact 2: Dates are provided for the recognized eras and periods of geologic time.

Given the two facts above, answer the question "Macroevolution above the level of the species happens over what" with the following options: 
- seasons
 - eras
 - scale
 - Earth
 - plates
 - days
 - minutes
 - years


 

  eras       