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Iniidae
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==Evolution== The South American river basins were flooded by marine waters,{{When|date=May 2019}} creating a new brackish habitat that allowed marine mammals to move into them. During the Miocene era, the sea level began to recede, trapping the mammals within the continent.<ref name="Hamilton2001">{{cite journal |author1=Hamilton, Healy |display-authors=etal |year=2001 |title=Evolution of river dolphins |journal=Proceedings of the Royal Society of London B: Biological Sciences |volume=268 |issue=1466 |pages=549β556|doi=10.1098/rspb.2000.1385 |pmid=11296868 |pmc=1088639 }}</ref>
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