system
A chat on 4chan
human
I think it did, but think the details are a bit smudged. When you read Plato's TImaeus it reveals that Atlantis is not one city, but TEN CITIES with ten kings that rule under a consortium of kings. It says that it's 9,000 years before Plato's time, which is roughly 11,500 years from ours. It also says that it's so lush and green that the air has a natural fragrance to it. That's absolutely nowhere in the Mediterranean.

It also seems to describe a phenomenon called liquifaction as what sank it while too many look for volcanoes as the cause. When an earthquake hits an island built on a sand basin instead of a stone one, it essentially turns that sand into quicksand.Half of the old pirate city Port Royale was sank by liquifaction caused by an earthquake, so this isn't something unknown to us.

Another key description is Plato describing it as so large it seems to circle the ocean while it's far west of the Pillars of Hercules. That sounds like the gulf of Mexico to me. 

And for bonus points the ancient pre-Columbian city of Tenochtitlan was a ringed water city.
gpt
The story of atlantis include the settling of the island by a God and his union with a daughter of a native resident. It starts far far back, like 100k years ago. The moment of the sinking of the island at the end of the younger dryas is the last episode of the Atlantis saga. Millenia have to pass between the settling and the fall. The state Atlantis was when it sank was the last degenerate state... far from the golden or silver age.

He also begat and brought up five pairs of twin male children; and dividing the island of Atlantis into ten portions, he gave to the first-born of the eldest pair his mother's dwelling and the surrounding allotment, which was the largest and best, and made him king over the rest; the others he made princes, and gave them rule over many men, and a large territory. And he named them all; the eldest, who was the first king, he named Atlas, and after him the whole island and the ocean were called Atlantic. To his twin brother, who was born after him, and obtained as his lot the extremity of the island towards the Pillars of Heracles, facing the country which is now called the region of Gades in that part of the world, he gave the name which in the Hellenic language is Eumelus, in the language of the country which is named after him, Gadeirus.