It measures the age of a fossil.:)
nothing but to make the world more complicated
The geologic time scale.
Cenozoic is not a major period of the geologic time scale. The scale is broken down into eras. Cenozoic, Mesozoic and Paleozoic are all part of the Phanerozic era.
Geologic Time. It's called the Geologic Time Scale.
Phanerozoic is the eon which geologic time scale means visable life.
rectum
Cenozoic
Cenozoic
in the scope of geologic time, how significant is the presence of humans?
On a geologic time scale, yes. On any other time scale, no.
Eon is the broadest division on the geologic time scale, representing the longest time span. Eons are further divided into eras, which are then subdivided into periods, epochs, and ages.
The Precambrian