the amazon river starts and ends at the atlantic ocean.
the amazon river starts and ends at the atlantic ocean.
where does the amazon river start and end?
atlantic ocean
the species "inia geoffrensis" was described by henri marie ducrotay de blainville in 1817. originally, the amazon river dolphin belonged to the superfamily platanistoidea, which constituted all river dolphins, making them a paraphyletic group. today, however, the amazon river dolphin has been reclassified into the superfamily inioidea. there is no consensus on when and how they penetrated the amazon basin; they may have done so during the miocene from the pacific ocean, before the formation of the andes, or from the atlantic ocean.
amazon river dolphin
the range of the white-fronted manakin is in the eastern guianas, (only southeast border region of guyana in the center-west of range), and the northeastern amazon basin; specifically, the eastern half of its range is all of brazil's northeastern state of amapá, with amapá's south-flowing jari river the centerline of its range. the range approaches the amazon river but avoids the amazon river corridor by about 100 km; further upstream its range is on the amazon river, its north bank for 500 km, starting at the rio negro confluence and downriver past the confluence of the madeira river. this portion of the range covers nearly all of the northern part of pará state, north of the amazon river. the species is not found south of the amazon river into the southeast amazon basin.
white-fronted manakin