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they all contriputied to the Continental drift and plate tectonic theory
Antonio Snider-Pellegrini(1802-1885)
In 1858, Snider-Pellegrini proposed that all of the continents were once connected together during the Pennsylvanian Period. He based this theory on the fact that he had found plant fossils in both Europe and the United States that were identical.
Eduard Suess (August 20, 1831 London - April 26, 1914 Vienna)
Eduard is responsible for the hypothesis of two major former geographical features, the supercontinent Gondwana (proposed 1861) and the supercontinent Gondwanaland.
Eduard came to the conclusion that the Alps to the north were once at the bottom of an ocean, of which the Mediterranean was a remnant. While not quite correct (mostly because plate tectonics had not yet been discovered - he used the earlier geosyncline theory)
His other major theory involved glossopteris fern fossils occurring in South America, Africa, and India (as well as Antarctica, though Suess did not know this). His explanation was that the three lands were once connected in a supercontinent, which he named Gondwanaland. Again, this is not quite correct
Frank Bursley Taylor (1860 - 1938)
Proposed in 1908 to the Geological Society of America that the continents moved on the Earth's surface
Alexander Logie du Toit (14 March 1878 - 25 February 1948)
When in 1923 he traveled to eastern South America he was struck by the similarities to South Africa, du Toit then published a review of the stratigraphic and radioisotope evidence from these regions that supported Alfred Wegener's ideas, A Geological Comparison of South America with South Africa (1927).
A later book, Our Wandering Continents (1937), expanded and improved this work, and, departing somewhat from Wegener, proposed two original supercontinents separated by the Tethys Ocean, a northern/equatorial Laurasia and a southern/polar Gondwanaland.
find more about these at
http://en.wikipedia.org/wiki/Antonio_Snider-Pellegrini http://en.wikipedia.org/wiki/Frank_Bursley_Taylorhttp://en.wikipedia.org/wiki/Eduard_Suess
http://en.wikipedia.org/wiki/Alexander_Du_Toit
i know this coz i had to do a project in year 9 sci bio and geo hope this helped
SCOTT
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