BRAZIL. AMAZON REGION. RONDONIA state. A team from the Mineral Resources Research Company (CPRM) - led by geologist Amilcar Adamy, found - at the region of Ponta do Abunã , the first paleotoca (paleo-burrows, of extinct animals) located at Brazilian Amazon region.
Ponta do Abunã is situated the border of Rondônia with the brazilian state of Acre and Bolivia. The structure of the tunnels drawn attention for its circular modeling, their large spaces. The length of the tunnels still could not be determined.
Ground sloth, Megatherium
Well kept, with no major obstacles to the movement of people, the paleotoca has claw marks that indicate that the place was excavated by big animals from the South American Pleistocene megafauna, possibly a giant sloth (Giant sloth, Megatherium), extinct for about 10,000 years.
At Brazil, Rio Grande do Sul is the state with the largest number of identified paleo-burrows. More than a thousand., according to data from Paleotocas Project, which brings together researchers from UFRS and Unesp, these paleotocas are unique in South America.
In Morro Grande, Santa Catarina state - have been identified tunnels with 150 meters length and about 1.5 meters in diameter distributed over 4 floors. The site is on a hill and has at least eight exits.
O GLOBO, 31.07.2015
CPRM descobre túnel de animais extintos na região de Rondônia e Amazônia
BUCHMANN, Francisco Sekiguchi. CARON, Felipe. LOPES, Renato Pereira. ICNOFÓSSEIS
(PALEOTOCAS E CROTOVINAS) ATRIBUÍDOS A MAMÍFEROS EXTINTOS NO SUDESTE E SUL DO BRASIL