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
Steamboat Butte, showing Dockum Group red beds at its base
Bull Canyon Formation
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The Bull Canyon Formation is a geological formation of Late Triassic age in eastern New Mexico and the Texas Panhandle. It is one of several formations encompassed by the Dockum Group.
Dockum Group
…of channel-deposits. Minor lacustrine deposits also occur. The Trujillo Sandstone, channel-deposits, and Cooper Canyon Formation (also known as the Bull Canyon Formation), overbank deposits with minor channel and lacustrine deposits, are separated from the Santa Rosa-Tecovas by an unconformity. In eastern New Mexico…
Phytosaurs cropped
Typothorax coccinarum skeleton