The 8,500-Year-Old Skeletons Found In A Texas Cave — And The Ancient DNA Mystery Hidden Inside
The Pecos River Style people and the plateau sinkhole burial people may have been related populations with similar cultural traditions, or they may have been distinct groups who happened to inhabit adjacent territories.
The archaeological evidence can establish roughly contemporaneous occupation of neighboring regions; it cannot yet demonstrate the specific cultural relationships between those regions.
What both the burials and the rock art make clear is that the Archaic populations of Texas were not people without complex spiritual and social lives.
They were people who built cemeteries and maintained them for thousands of years.
They were people who painted elaborate visions on canyon walls.