🇧🇷 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.
🇧🇷 Brazil · Buried city
Marajoara – Mound Complex of Marajó Island, Pará (Hypothetical Urbanism)
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 · Rock art
Serra da Capivara Rock Art
Upper Paleolithic to early Holocene (~25,000 BCE – 2000 BCE disputed; art ~9000 BCE onward) · Paleoindian / early Nordeste tradition; Pedra Furada phase
Semiarid caatinga plateau with over 400 painted shelters bearing perhaps 30,000 figures, among the densest and most narrative rock-art landscapes in the Americas.