Fig. 3: Regional ammonoid diversity in the Late Cretaceous.
From: Late Cretaceous ammonoids show that drivers of diversification are regionally heterogeneous
Diversity trajectories comprising the mean and 75% and 95% confidence intervals for each regional ammonoid dataset, and Pearson’s correlation coefficient between genus and species richness through time. Logically, genus richness should not exceed species richness. This artefact is the result of incomplete sampling of genus richness at the species level in our data, and we direct the reader to the discussion for a more detailed treatment of this issue. A Antarctic. B Tethys. C South Africa. D Western Interior Seaway. E West Africa. F East Pacific. G West Pacific. H Atlantic and Gulf. Source data is available in the electronic supplement accompanying this paper.
