1992
DOI: 10.1590/1809-43921992223361
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Abstract: It has been suggested that a huge lake, Lago Amazonas, covered a large part of the Amazon basin until as recently as two thousand years ago. According to this hypothesis, the topmost sediments in western Amazonia are almost universally young deposite of lacustrine and deltaic origin. The hypothesis has gained some attention among biologists because of its implications for biological phenomena in Amazonia, especially biogeography and biodiversity. According to the available geological data, however, Amazonia is… Show more

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Cited by 21 publications
(14 citation statements)
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“…Our data agree quite well with some recent studies which indicate that the wetland system may have persisted until the Late Pliocene or Pleistocene [135,147,148]. Aleixo and Rossetti [149] claimed that the Midwestern Amazon may be the most dynamic area for new colonization, due to a relatively recent reduction of the Amazon Lake and subsequent floodplains in that area. Although, some authors have resisted this view [5,150], the mitochondrial capybara diversification could perfectly agree with this hypothesis.…”
Section: Miocene and Pliocene Amazon Biodiversity Hypotheses For The supporting
confidence: 92%
See 1 more Smart Citation
“…Our data agree quite well with some recent studies which indicate that the wetland system may have persisted until the Late Pliocene or Pleistocene [135,147,148]. Aleixo and Rossetti [149] claimed that the Midwestern Amazon may be the most dynamic area for new colonization, due to a relatively recent reduction of the Amazon Lake and subsequent floodplains in that area. Although, some authors have resisted this view [5,150], the mitochondrial capybara diversification could perfectly agree with this hypothesis.…”
Section: Miocene and Pliocene Amazon Biodiversity Hypotheses For The supporting
confidence: 92%
“…Therefore, our data could support the existence of a unique species with relatively recent differentiation (Late Pliocene and Pleistocene). The HRCH implies that different regions of the Amazon may have undergone distinct rates of landscape change, with the Western area of the Madeira River being the most dynamic (the area sampled here for capybara), Today it is covered by the Amazon sedimentary basin [135,149,200]. This area has only recently transitioned from a lacustrine system to floodplain and in turn to lowland forest and retains many patches of seasonally inundated forest.…”
Section: Miocene and Pliocene Amazon Biodiversity Hypotheses For The mentioning
confidence: 99%
“…According to this hypothesis large part of the western parts of South America was covered by an inland lake, between 10,000 years BP and 2000 years BP. However, Tuomisto et al (1992) argue against the evidences presented in the work of Frailey et al (1988). Hoorn et al (1995) presented new data from Neogene strata in northern South America and argued that Miocene tectonism in the north-eastern Andes was responsible for the genesis of the Amazon River and changes in the drainage patterns of other major rivers such as the Magdalena and the Orinoco.…”
Section: Evolutionary History Of the Fluvial Systemmentioning
confidence: 88%
“…The biogeographical implications of this vast lake, if it existed, would be that portions of the forest fauna survived the flood in relatively small disjunct pockets of rainforest located along the irregular margins of "Lake Amazonas". Tuomisto et al (1993) critically reviewed this hypothesis concluding that it was not supported by geological field data. Räsänen et al (1995) attributed at least part of the postulated lacustrine strata to the Miocene and Clapperton (1993) felt that this "megaflood" hypothesis should not be taken seriously.…”
Section: Lagoon Model or Lake Modelmentioning
confidence: 99%