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Aletheia

The Emptied Amazon · claim AMZ-C061 · Observation rung · Earthworks and settlement systems

Excavations in the Upano Valley (Ecuador) date the Kilamope/Upano occupation from around 500 BCE to between 300 and 600 CE.

Not featured in the current editionAI-extractedorigin: report 2026-09-17-report-pre-columbian-amazon-134558

source anchor

[p. 1] via open-access author manuscript (archimer.ifremer.fr/doc/00872/98412/118237.pdf)

“occupation from around 500 BCE to between 300 and 600 CE”

Evidence

Supports· strongAMZ-E073

Rostain 2024: Upano platform and road construction dated ca. 500 BCE to 300/600 CE — part 1

what the source states
Archaeological excavations date the Upano Valley "occupation from around 500 BCE to between 300 and 600 CE".
what we infer
Primary dating by the excavating team (almost 70 radiocarbon dates per the supplement); the end-date is a range, not a point.
limitations
  • Author-accepted manuscript; the revised sequence is promised in 'a subsequent paper'.
Stéphen Rostain (2024)AI-verified citation

an honest empty state

This claim is in the ledger but not in the current edition's featured set. Nothing here has been assessed — that absence is information, not an oversight.

Still missing: plain-language gloss, credibility assessment, diagnosticity assessment, strongest objection, what would change our mind. A claim gains them when an edition features it and the edition's adopted assessment supplies the full treatment — a decision the panel reviews, not a field anyone flips.