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It was the middle of the 19th century before geological exploration of Texas began. Exploration did not get organized at a state level until later that century with the series of Geological Surveys of the State of Texas. The 20th century geological mapping of the state generated countless specimens which now form the basis of our stratigraphic collections.
The geologists whose specimens are in this repository are described briefly here. The grouping of the resulting collections is also explained.
Early geologists covered the ground
on foot, mule or horseback.
This is W.C. Cummins and field assistant
in west Texas
in the 1890's