A site at Lewisville, Texas, one of the earliest Paleo-Indian sites in North America, represents a possible specialized site of Clovis-aged (around 12,000 B.P.) people who were using fires at least partially fueled by lignite.
Possessing only crude spears and flint-pointed darts according to the archaeological evidence, these hunters survive primarily on wild game.
While the site seems to represent the Western Hemisphere's oldest culture, the Cretaceous-age lignite was responsible for producing the earlier and erroneous dates of 35,000 BCE, and because of this contamination, later attempts to obtain absolute dates for the site were unsuccessful.
The entire collection of materials from the site is located at the Smithsonian Institution.
