Amazon biome Amazonas, Brazil contains campinarana, dense rainforest and contact between campinarana and rainforest. The vegetation formations include terra firme forests and igapós. Submontane forests climb the first steps of the Guiana Plateau to about , followed by montane forests. Lichens and bromeliads are found up to . There is also alpine tundra in the tabular plateaus. The Amazon basin contains several large areas of moist forest, collectively called the Amazon rainforest. These are the Caquetá, Japurá-Solimões-Negro, Juruá-Purus, Madeira-Tapajós, Napo, Purus-Madeira, Solimões-Japurá, Southwest Amazon, Tapajós-Xingu, Tocantins-Pindara, Uatuma-Trombetas, Ucayali and Xingu-Tocantins-Araguaia moist forests. Each has distinctive vegetation. In the broad definition favored by
Amazon River the world's largest, draining the most extensive area of rainforest on the planet. Paralleling the Amazon River is a large aquifer, dubbed the Hamza River, the discovery of which was made public in August 2011. More than one-third of all known species in the world live in the Amazon rainforest, a giant tropical forest and river basin with an area that stretches more than . It is the richest tropical forest in the world in terms of biodiversity. There are over 3,000 species of fish currently recognised in the Amazon basin, with more being discovered every year. In addition to