- What the fossilized footprints found last week say about early humans in North America OregonLive
- Human Footprints Found In New Mexico Push Back The Date Of Human Arrival In America To 23000 Years Swarajya
- Oldest Human Footprints In North America Discovered In A U.S. National Park TravelAwaits
- Fossil footprints show humans in North America more than 21,000 years ago Today.com
- Study follows ancient footprints in New Mexico to major scientific find Arizona Daily Star
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