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Southeastern Ohio was a swamp-covered coastal plain. [4] Ferns and horsetails were among the state's rich flora. [3] Ohio was only about 5 degrees north of the equator. Sand and mud deposited on local river deltas gradually filled in the swamp. Later in the Permian Ohio was subjected to geologic uplift and its sediments were eroded away ...
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The Montepuez ruby mine in northeastern Mozambique is situated on one of the most significant ruby deposits in the world, [22] although, rubies were only discovered here for the first time in 2009. In less than a decade, Mozambique has become the world's most productive source for gem-quality ruby.
The year after the Hadrosaurus's fossils were first identified, 1859, state agricultural chemist Philip T. Tyson found the first documented dinosaur fossils of the Arundel Formation in an iron pit at Bladensburg, Maryland. [43] The discovery consisted of two fossil teeth. Tyson took the dinosaur teeth to a local doctor named Christopher Johnston.
People first uncovered fossils around San Pedro High School in 1936. They were ancient shells belonging to snails and other mollusks from tens of thousands of years ago.
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Ohio: A History of the Buckeye State (Wiley-Blackwell, 2013), 544pp; Knepper, George W. Ohio and Its People. Kent State University Press, 3rd edition 2003, ISBN 0-87338-791-0; Murdock, Eugene C. and Jeffrey Darbee. Ohio: The Buckeye State, An Illustrated History (2007). popular; Roseboom, Eugene H.; Weisenburger, Francis P. A History of Ohio ...
The following is a list of the world's oldest surviving physical documents. Each entry is the most ancient of each language or civilization. For example, the Narmer Palette may be the most ancient from Egypt, but there are many other surviving written documents from Egypt later than the Narmer Palette but still more ancient than the Missal of Silos.