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During the Cambrian period, Texas was covered by a sea. [4] Cambrian life in Texas included brachiopods, gastropods, graptolites, and trilobites. [5] Areas of Texas distant from the shore were home to bivalves, brachiopods, sponges, and trilobites. [4] Contemporary graptolites were preserved in the central region of the state. [6]
Rifting events during the Cambrian Period (early Paleozoic) left fault zones in the region. These fault zones acted as planes of weakness for faulting that was later initiated by the Ouachita Orogeny. These fault zones caused the Tobosa Basin to be transformed, due to tectonic activity, into the Permian Reef Complex, which comprises three parts ...
Texas: Country: United States: The Wilberns Formation is a geologic formation in Texas. It preserves fossils dating back to the Cambrian period. See also
This list of the Paleozoic life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas and are between 538.8 and 252.17 million years of age.
This list of the prehistoric life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas. Precambrian [ edit ]
Texas has been the leading state in petroleum production since discovery of the Spindletop oil field in 1901. [11] As of October 2017, the State of Texas (if treated as its own nation) is the 7th largest oil producing nation in the world, with production totaling approximately 3.78 million barrels (600 thousand cubic meters ) per day of oil ...
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Llano Uplift - geologic map. The Llano Uplift can be considered an uplift by either its pattern on a geological or structural map of the top of the Precambrian rocks. It qualifies as an uplift because it consists of an extensive Precambrian basement high that is exposed by virtue of its surface lying significantly above in elevation the surface of surrounding Precambrian basement.