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Eras are longer than, and made up of, periods, in the same way that decades are longer than and made up of years. For example, the Mesozoic era is made up of the Triassic, Jurassic and Cretaceous periods, in the same way that the 1990s is made up of 1990, 1991, 1992, 1993... etc.
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What are the basic divisions of the Geologic Time Scale from larger to small?
eras and periods
What do periods make up?
periods make up eras
What can geologic eras be divided into?
Geological eras can be divided into periods, epochs and ages.
Geological eras can be divided into .?
Geological eras can be divided into periods, epochs and ages.
What are Eons divided into?
Eons are divided into eras, which are further divided into periods. Each period is then subdivided into epochs.
WHAT IS PERIODS USING WORLD HISTORY?
Periods mean eras centuries ages
What can the Geological eras be divided into?
The Geological eras can be divided into three major eras: Paleozoic, Mesozoic, and Cenozoic. These eras represent different periods in the Earth's history marked by significant geological and biological changes. Each era is further subdivided into periods, epochs, and ages.
How is geologic time organized?
By eons, eras, epochs, and periods.
Why does only one eon have eras?
An eon is an indefinitely long period of time, in which there exist noteworthy periods known as eras.
How is geologic time scale organized?
By eons, eras, epochs, and periods.
do Eras and periods both appear at the start of the Cambrian period?
farts
What determines the divisions of eras and periods on the geological time scale?
Eras are based one the worldwide changes in types of fossils. Periods are based on types of life worldwide. The Cenozoic era is the geological time scale is divided into both periods and epoch.
