We know what it can’t be because they didn’t exist at the time.

Image from video of Lagomarsino Petroglyphs by storiesbyalex.
Western Horse Watchers Association
Exposing the Hypocrisy, Lies and Incompetence of the Wild Horse Advocates
We know what it can’t be because they didn’t exist at the time.

Image from video of Lagomarsino Petroglyphs by storiesbyalex.