Final answer:
In the Late Paleo-Indian period and into the Early Archaic in Texas, there was a technological shift with the development of the lighter throwing spear and the atlatl, greatly improving hunting efficiency. There was also evidence of pre-Clovis tools at sites in Texas, showing a progression in tool-making.
Step-by-step explanation:
The shift that happened in the Late Paleo, Early Archaic periods concerning spear points in Texas is significant. During the Paleo-Indian period, the most common weapon was the spear, initially used as a thrusting weapon. However, a critical shift occurred with the development of the atlatl, which allowed hunters to throw spears with increased range and speed. Additionally, archaeological sites such as the Debra L. Friedkin site in Texas provide evidence of a broader range of pre-Clovis tools, indicating a progression in tool-making practices and a shift from heavy, laboriously flaked projectile points, like the Clovis points, to smaller, less standardized pre-Clovis projectile points. These changes reflect the evolving subsistence patterns and technologies of early human inhabitants in Texas.