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mississipian period?
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.
your mama was born
Each era on the scale is separated from the next by a major event or change. Different spans of time on the time scale are usually delimited by major geological or paleontological events, such as mass extinctions.
dick
The existence and extinction of the dinosaurs.
mississipian period?
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.
your mama was born
they use major fossil records
Each era on the scale is separated from the next by a major event or change. Different spans of time on the time scale are usually delimited by major geological or paleontological events, such as mass extinctions.
dick
An era, in geologic terms, is a geological time period encompassing two or more geologic periods.
Geologic Time. It's called the Geologic Time Scale.
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Olympics
the Jurassic Period