It has been quite a few years since serious anthropologists or archaeologists considered Clovis the first North American culture.
The Texan sites that excavated hundreds of thousands of pre-Clovis artifacts from strata thousands of years before Clovis have been well-known for decades.
It looks like this site fell out of use for a long time immediately after the Younger Dryas bolide strike of BCE 10,816 that wiped out the Clovis culture along with 30+ genera of large mammals, including horses, camels, giant sloths, dire wolves, and mammoths, and deposited a layer of sharply platinum-enriched dust and soot.
It looks like this site fell out of use for a long time immediately after the Younger Dryas bolide strike of BCE 10,816 that wiped out the Clovis culture along with 30+ genera of large mammals, including horses, camels, giant sloths, dire wolves, and mammoths, and deposited a layer of sharply platinum-enriched dust and soot.