GUANABARA BAY, A LOOK AT HISTORY | Guanabara Bay (Rio de Janeiro) - All You Need to Know

A living witness to our history, Guanabara Bay holds relics dating back thousands of years. The discovery of archeological sites near its banks indicates that these waters may have been used by prehistoric people – known as “sambaquis” (“midden”) people. [1] At these sites, the fossils of small marsupial mammals, terrestrial mollusks, birds and reptiles have been identified, as well as chipped stones and ceramics, which tell us a little of this history.

Outras pesquisas Other research carried out by geographers and geologists concluded that, thousands of years ago, the sea level was around 130 meters below its current level. [2] At this time, therefore, on a large part of the currently submerged continental shelf, there used to be areas of restinga (sandy coastal vegetation), cliffs and dunes, which were home to exuberant megafauna such as mastodons, saber-toothed tigers, giant armadillos, and sloths as much as six meters long. [3] The cause of these animals’ disappearance is still uncertain: there may have been a shortage of food arising from the last ice age, or they may not have survived the rising waters of the Atlantic Ocean throughout the continental shelf’s coastal zone. At any rate, it is known that it was this flooding event, around 12,00 years ago, that gave rise to Guanabara Bay.

Why is Guanabara Bay so special?
A living witness to our history, Guanabara Bay holds relics dating back thousands of years. The discovery of archeological sites near its banks indicates that these waters may have been used by prehistoric people – known as “sambaquis” (“midden”) people.

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