Although Posnansky was born in Austria, he spent most of his life in Bolivia studying the remains of Tiwanaku (Tiahuanaco) and the surrounding Altiplano of the High Andes.For this reason, he is almost universally held in high esteem by present-day Bolivians.Most of this work is simply ignored today because it raises awkward questions about whether these methods should used as the sole arbiters of the age of a given site.

We have, however, no hard evidence of this and their hunter-gathering lifestyle may equally have resulted from the aftermath of catastrophe as much as any innate “primal” qualities they may have had.

He concluded that the source of the salt water had been the Pacific, whereas the fresh water had originated from melting glaciers.

Human occupation there followed the initial shrinking of a great lake, called Tauca, which was formed at the end of the transitions from the Pleistocene to the present Holocene era.

These early occupants were hunter-gatherers, by which it is often inferred that they were the “primitive” predecessors of the people who built Tiwanaku.

It is not just that this date is far too early to fit the conventional paradigm, but it implies the possession of a sophisticated understanding of the heavens amongst those who constructed Tiwanaku.

This challenges many current assumptions about the intellectual and technological capabilities of the Pleistocene inhabitants of the Andes.

His careful observations of Andean geology, however, were remarkably prescient of those of geologists later in the 20th century, who had started to call into question the exclusivity of uniformatarianism to describe the way that the Andes had formed.

Posnansky’s most intriguing findings were from the excavations he made on the altiplano at Tiwanaku and on the shores of present-day Lake Titikaka.

In the altiplano’s alluvial mud, Posnansky discovered, mixed up with human bones, the remains of species of fish and aquatic fauna that are still living today in Titikaka’s waters.

This he took to be definitive proof that Tiwanaku had been flooded at least once in its long history.

Subsequent astronomical dating undertaken by Professor Neil Steede, yielding a date of 10,000 BC, was confirmed by Doctor Oswaldo Rivera in 1996.