The Miocene Epoch was the fourth epoch of the Tertiary period in the Cenozoic Era, and spanned from 23.03 to 5.3 million years ago. During this time there was a warmer global climate than the previous eras, and the land that is in the center of the continent now known as North America began to dry. At this point, Ohio was above sea level and the land was exposed. This left the rocks that exposed to the elements, which caused significant erosion.
The position and shape of the Earth's continents
appear very similar to the modern continents.
It is believed that several hundred meters of rock were destroyed due to weathering and glacial movement. This erased all trace evidence of animal life and left a blank space within Ohio’s geological history.
It is assumed that land animals were present in Ohio
during this time period. However, no fossils remain to
prove which species or an exact location.
Links/Sources:
http://www.geology.ohio-state.edu/~vonfrese/gs100/lect33/
http://www.scotese.com/images/014.jpg
By Victoria and Lexi
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