Trujillo Formation
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The Trujillo Formation is a geologic formation in Texas and New Mexico. It preserves fossils dating back to the upper Triassic period. It is also known as the Trujillo Sandstone.
Trujillo Formation in Texas
Dockum Group
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The Dockum is a Late Triassic geologic group found primarily on the Llano Estacado of western Texas and eastern New Mexico with minor exposures in southwestern Kansas, eastern Colorado, and Oklahoma p
Trujillo Formation
…The formation contains Typothorax scutes and the unusual cycad Sanmiguelia. The formation was first named as the upper formation of the Dockum Group in 1907 by C.N. Gould. List of fossiliferous stratigraphic units in Texas…
Steamboat Butte, showing Dockum Group red beds at its base