Could the story of Atlantis be much older than Plato believed?

ATLANTIS: AN ISLAND CONTINENT

In the distant past, the continents were not arranged as they are today. Land blocks moved relative to each other, which led to movement, collision of continents and the emergence of supercontinents that united almost all the landmasses.

What if Atlantis didn't break apart and sink overnight on a human timescale but overnight on a geologic timescale of hundreds of millions of years..?

Imagine Atlantis was a city on Pangea 350 to 400 million years ago inhabited by an intelligent technologically advanced pre-human that thrived in the higher temperatures and oxygen levels.. Imagine the continents today and the ancient ruins on them, the megaliths and the monoliths above and below sea level are the remains of Atlantis.

Pangea is the first point in time where there could have been a shared architecture, language, history, science, mythology, technology and evolution - on a global scale.. Pangea existed as a supercontinent for 160 million years, from its assembly around 335 Ma (Early Carboniferous) to its breakup 175 Ma (Middle Jurassic).

If we overlay today’s international borders onto the supercontinent of Pangea, the result is a map that drastically changes the relationships and proximities between countries and the ancient sites on them.

175 million years ago, the landmasses of Earth were not divided into the seven continents (or eight, including Zealandia), that we recognize today, but were instead joined into a single supercontinent known as Pangaea. This vast landmass was surrounded by the global ocean, Panthalassa. Around 200 million years ago, Pangea began to break apart, setting the stage for the formation of our current continents.

https://www.visualcapitalist.com/incredible-map-of-pangea-with-modern-borders/

Mauritania/Richat Structure would have been part of the supercontinents western edge, near what is now the eastern coast of South America.

https://www.google.com/maps/place/Richat+Structure/@22.3721781,-15.8541195,1270730m/data=!3m1!1e3!4m6!3m5!1s0xe811f4e324b6875:0xc77fc467300cc46d!8m2!3d21.1202141!4d-11.4006842!16zL20vMDIxNmw5!5m2!1e4!1e1?entry=ttu&g_ep=EgoyMDI0MTEyNC4xIKXMDSoASAFQAw%3D%3D

Lost beneath the leaves: Lasers reveal an ancient Amazonian civilisation.

Pyramids and canals built by an ancient civilisation have been discovered beneath the forests of the Bolivian Amazon. LiDAR technology allowed archaeologists to see through the canopy to reveal hundreds of previously unknown structures and settlements from the Casarabe culture of 500-1400 AD. In this film archaeologist Heiko Prümers describes his work in a region long thought to be unable to support complex ancient societies.

https://youtu.be/VaXrX0veR9Y

Climate of the Supercontinent Pangea.

Numerous climate models predict that the geography of the supercontinent Pangea was conducive to the establishment of a "megamonsoonal" circulation. In general, geologic evidence supports the hypothesis of a megamonsoon that reached maximum strength in the Triassic. Pangea in the Late Carboniferous had widespread peat formation in what is now central and eastern North America and Europe and relatively dry conditions on the Colorado Plateau. The equatorial region of the continent became drier through the end of the Carboniferous. By the Permian, the equatorial region of Pangea was dry, and indicators of aridity and rainfall seasonality became more widespread. Wind directions from Colorado Plateau eolian sandstones are consistent with an increasing influence of monsoonal circulation at this time. In the Triassic, climate in the Colorado Plateau region became relatively wet, though still seasonal, and the few eolian sandstones indicate a major shift in wind direction at that time. In addition, sedimentation in Australia, which was in relatively high latitudes, took on a much drier and more seasonal character. These two events support the hypothesis that the Pangean monsoon was at maximum strength during the Triassic. In the Early Jurassic, the Colorado Plateau region became arid again, but climate apparently became wetter in eastern Laurussia and Gondwana. Finally, drying occurred in Gondwana and southern Laurasia, indicative of the breakdown of the Pangean monsoon.

https://www.journals.uchicago.edu/doi/abs/10.1086/648217

https://phys.org/news/2016-12-breakup-supercontinent-pangea-cooled-mantle.html

How might a pre-human have been able to survive the higher levels of oxygen 400 million years ago?

In the past could Methemoglobinemia have been an adaptation that allowed the Atlanteans to survive in the higher levels of oxygen.

Methemoglobinemia (MetHb) today is a very rare blood disorder, sometimes called “blue baby syndrome,” which affects how red blood cells deliver oxygen to cells and tissues. Not everyone has symptoms, but nearly all people with this condition have skin, nails or lips that are a distinctive shade of blue or purple. It occurs when there is a problem with an enzyme called cytochrome b5 reductase.

Methemoglobinemia is a condition with life-threatening potential for people today in which diminution of the oxygen-carrying capacity of circulating hemoglobin occurs.

Could India's legends of the blue people or blue gods be the last records of the descendants of Atlantis and it's history..?

There are two types of inherited MetHb: Type 1 (also called erythrocyte reductase deficiency) occurs when RBCs lack the enzyme. Type 2 (also called generalized reductase deficiency) occurs when the enzyme doesn't work in the body.

Genetic methemoglobinemia is a rare, inherited condition that affects the function of red blood cells. It occurs when there's a problem with the enzyme cytochrome b5 reductase, which alters hemoglobin in red blood cells. Hemoglobin is a molecule that carries oxygen to the body's tissues, but in people with methemoglobinemia, some normal hemoglobin is replaced by methemoglobin, which can't deliver oxygen.

A Case of Congenital Methemoglobinemia: Rare but Real.

Imagine the direct descendant of Atlantis slowly turning blue as the earth's oxygen levels fell to what they are today..

Early human migrations out of Africa (and the possible location of Atlantis) were complex and involved multiple waves of migration over a long period of time.

What was the Earth like at the time of Pangea? | History of the Earth Documentary

Six continents separated by vast expanses of water - this is the familiar image of our planet that we have all shared since childhood. But the Earth hasn't always looked like this. Over the past 4.6 billion years, our planet has gone through many geological eras. During some of these eras, almost the entire surface was covered with ice, while in other periods, on the contrary, the polar caps melted completely.

https://youtu.be/L3NBOm9KkHQ

https://youtu.be/yjJVwUiHbnA