A masterpiece of prehistoric rock art from the Amazon, hailed by some as “the Sistine Chapel of the ancients,” may depict extinct Ice Age mammals, offering a fascinating snapshot of doomed species and their brief coexistence with humankind.
The eight-mile Cerro Azul rock art mural at Serranía de la Lindosa in Colombia’s Guaviare region, on the banks of the Guayabero River, has been the subject of recent expeditions led by José Iriarte, an archaeologist at the University of Exeter. Now, the ocher paintings have become the subject of debate, as experts attempt to definitively date them and identify the animals.
It’s possible that the stunning artworks are up to 12,000 years old, and show Ice Age megafauna, as argued by a study published this week in the journal Philosophical Transactions of the Royal Society B. (Archaeologists first began studying the paintings in 2016, after a peace treaty brought stability to the region after years of civil war, and published their initial findings in late 2020).
“[The paintings] have the whole diversity of Amazonia. Turtles and fishes to jaguars, monkeys, and porcupines,” Iriarte, the study’s lead author, told CNN. He believes that as prehistoric humans migrated down into South America, “they encountered these large-bodied mammals and they likely painted them. And while we don’t have the last word, these paintings are very naturalistic and we’re able to see morphological features of the animals.”
As the last ice age drew to a close, South America would have been home to creatures that would look exotic to modern eyes, including giant ground sloths, elephant-like creatures called gomphotheres, extinct Pleistocene horses, and hoofed mammals from the Litopterna family.
In the paintings at Serranía de la Lindosa, Iriarte points to a larger animal trailed by a smaller one, which he believes is the adult giant ground sloth and its offspring.
But Iriarte’s findings are not universally accepted—interpreting art, after all, is always subjective.
Definitively identifying the figures as extinct megafauna is “wishful thinking” based solely on “eyeballing,” Ekkehart Malotki, a Northern Arizona University professor emeritus who has published similar research about ancient petroglyphs, told the New York Times.
There is also still a question of how old the paintings are, especially considering how extraordinarily well-preserved they are, despite exposure to the elements.
Since 2016, Fernando Urbina and Jorge Peña, archaeologists at the Universidad Nacional de Colombia, have argued that the murals might be only a few hundred years old. That would mean they have nothing to do with the Ice Age, and that the mammals in the paintings might be present-day animals, such as capybaras or modern horses introduced by Europeans.
Archaeologists are hoping that testing will provide more definitive dating for the paintings later this year. Those findings should prove instrumental in resolving the debate once and for all.
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