Archeology is not the study of dinosaurs, or rocks, or fossils-archeology is the study of past human cultures. People came to North America over an Arctic land bridge across the Bering Strait, and they came to Texas thousands of years before Columbus arrived in the New World. American Indians did not use the bow and arrow until about 1500 years ago-earlier hunters used spears.
Some stone points that people call arrowheads are really spear points.
The horse was introduced to American Indians by the Spaniards after A.D. 1500. The Karankawa of the Texas coast spoke a language related to Indian languages of the Caribbean region, and the Karankawa may have come to Texas by boat in prehistoric times. Prehistoric Texas Indians were trading for turquoise and obsidian from New Mexico, shell from the Pacific and the Atlantic coasts, and exotic stone from as far away as Minnesota. A stone quarry in Texas was used by many Indians of the southern Great Plains and is now a national monument-Alibates National Monument, in the Amarillo area. Prehistoric people in Texas used plant fibers to make baskets, mats, sandals, and many other useful objects.