🇧🇷 Brazil · Earthwork
Marajoara Mounds (Teso dos Bichos)
Marajoara Phase (Polychrome Tradition) · Marajoara (Arauan-derived Amazonian Polychrome)
Marajoara chiefdom mounds (800–1400 CE)—40-m tesos and funerary urn fields on Amazon's delta island.
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78 places in the atlas, 6 of them inscribed as UNESCO World Heritage.
🇧🇷 Brazil · Earthwork
Marajoara Phase (Polychrome Tradition) · Marajoara (Arauan-derived Amazonian Polychrome)
Marajoara chiefdom mounds (800–1400 CE)—40-m tesos and funerary urn fields on Amazon's delta island.
🇧🇷 Brazil · Ancient city
Xinguano 800–1600 CE · Xinguano / Arawak
Cluster of 20+ pre-Columbian settlements in Xingu with causeways 50 m wide, plazas, reservoirs, showing dense urbanism (population 50k) in Amazon before 1492, built 800–1400 CE, described by Michael…
🇧🇷 Brazil · Buried city
Marajoara Phase (800–1400 CE) Amazonian Polychrome · Marajoara / Aruã / Ananatuba
Amazon mouth tesos 12 m high with 3 km causeways at +1 m (800–1400 CE) — continental city 40,000 vs chiefdom 10,000 debated.
🇧🇷 Brazil · Lost city
Late Pre-Columbian (c.700 – 1600 CE) · Xinguano tradition (Kuikuro ancestors)
Upper Xingu plaza town 8 km east of classic Kuhikugu — ring ditch, 700 m causeway and terra preta, 14 ha, 900–1350 CE.
🇧🇷 Brazil · Ancient city
Claimed ancient (Fawcett 500 BCE Atlant. survivors) vs real Xinguano 800–1600 CE · Fawcett: imagined Atlantean/Cartaginian survivors; real: ancestral Kuikuro (Arawak) Xinguano polities
Fawcett's Atlantean Z near Xingu 1925 vanished – 30 km away Heckenberger found real 50-ha Kuhikugu road-plaza network.
🇧🇷 Brazil · Geoglyph
Late Pre-Columbian (200 BCE – 900 CE) · Acre (Beni) geoglyph builders
Western Acre Capixaba 300 m circle ditch 3 m deep with embankment and 120 m square 2 m high under pasture — causeway 400 m links.
🇧🇷 Brazil · Geoglyph
Pre-Columbian 1–1500 CE · Acre / Xinguano tradition
Hundreds of large ditched enclosures (squares, circles, U-shapes) revealed since 1977 by deforestation, built by pre-Columbian Amazonian cultures using forest clearance, dated 1–1500 CE, associated…
🇧🇷 Brazil · Geoglyph
Late Pre-Columbian (200 BCE – 900 CE) · Acre (Beni) geoglyph builders
Western Acre Capixaba 300 m circle ditch 3 m deep with embankment and 120 m square 2 m high under pasture — causeway 400 m links.
🇧🇷 Brazil · Geoglyph
Late Intermediate to Late Horizon (Xingu polyglot / Kayabi) · Upper Xingu archaeological tradition / Kayabi
Southern Amazon forest geoglyph province distinct from Acre-Urubamba: 14 circular and rectangular enclosures (120-320 m) on Xingu headwater interfluvia (260 m, 9°45′S 52°21′W), documented by Mendeley…
