Sandstone formation in Ohio occurred during various periods of the Paleozoic Era, primarily in the Devonian, Carboniferous (Mississippian and Pennsylvanian), and Silurian periods, with some formations dating back to around 444 million years ago.

Here's a more detailed breakdown:

• Silurian Period (444-419 million years ago):

  The "Clinton" sandstone, formed from sediments deposited in coastal deltas and sandy shorelines in eastern Ohio, dates back to this period.

• Devonian Period (419-359 million years ago):

  The Oriskany Sandstone, a subsurface formation in eastern Ohio, formed during the Early Devonian period.

• Carboniferous Period (Mississippian and Pennsylvanian):

  River and delta sediments, which formed the Berea Sandstone and other formations, covered shales at the start of the Mississippian period (340 million years ago).

Here is what Google A.I. said when asked: When was sandstone formed in ohio?

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Dating for sandstone development in Ohio proves this is indeed the Oldest Dinosaur by at least several tens of millions of years.

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The 4 pound meteorite is revealed in 23 microscopic pictures of inner layers, most like no other on record. One layer cut with a diamond saw as seen on main page is very much like what was called The Black Beauty Meteorite, yet that one portion of The Black Rose Meteorite alone is more detailed. The rest is other worldly. It is estimated that there are 100 different minerals both organic & inorganic in The Black Rose Meteorite. That's a record.

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