Fig. 1: Biodiversity accumulation and environmental change during GOBE.
From: Stable ocean redox during the main phase of the Great Ordovician Biodiversification Event
Cumulative biodiversity10, sea surface temperatures16,67 and inferred atmospheric oxygen levels24 throughout the early Paleozoic (modified from ref. 21). The pink area highlights the Middle Ordovician. The red vertical line represents the Dapingian-Darriwilian boundary. P Pridoli, SST Sea Surface Temperature.
