Table 1 Documented past hydrogeological events in La Plata Basin.

From: Multilocus phylogeny and historical biogeography of Hypostomus shed light on the processes of fish diversification in La Plata Basin

Hydrogeological events

Mya

References

Boundary displacements between the proto Amazonas–Orinoco and La Plata Basin

30–20

24

River headwater capture events between the Upper Paraná and the coastal rivers of southern Brazil

28–15

26

First maximum flooding event of marine incursion in La Plata Basin

15–13

28

Second maximum flooding event of marine incursion in La Plata Basin

10–6.8

28,29,31,32

Boundary displacements between Paraná and Uruguay rivers

7–2.5

33,35,37

River headwater capture events between the Rio Grande and Pilcomayo River

3.5

25

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