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Featured Article: Triassic Period
Triassic Period was a time in Earth's history that lasted from about 251 million to 213 million years ago. See more »
Articles 1-6 of 6
Cenozoic Era
Cenozoic see nuh ZOH ihk or sehn uh ZOH ihk, Era, is the most recent era in the geologic time scale of the earth's history.
See more »Devonian Period
Devonian, duh VOH nee uhn, Period was a time in Earth's history that lasted from around 410 million to 360 million years ago.
See more »Ice age
Ice age is a period in Earth's history when ice sheets cover vast regions of land.
See more »Ordovician Period
Ordovician Period, awr duh VIHSH uhn, was a time in Earth's history that lasted from around 505 million to 440 million years ago.
See more »Silurian Period
Silurian, suh LOOR ee uhn, Period was a time in Earth's history that lasted from around 440 million to 410 million years ago.
See more »Triassic Period
Triassic Period was a time in Earth's history that lasted from about 251 million to 213 million years ago.
See more »Articles 1-6 of 6
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