Figure 2 : Extinction and origination rates of Late Triassic radiolarian species in the Panthalassa Ocean.

From: Bolide impact triggered the Late Triassic extinction event in equatorial Panthalassa

Figure 2

The extinction rate of the middle Norian impact event is substantially higher than the rate at the Triassic–Jurassic boundary (TJB). Error bars are one standard deviation, estimated from bootstrap resampling of the stratigraphic ranges of species with 1000 iterations. See Supplementary Fig. S2 for the age model.