FIG. 29 in New Cenozoic Muricidae (Mollusca: Gastropoda) from Europe

FIG. 29. — Histogram showing the evolution of the species richness during the Paleogene in Western and Eastern Atlantic, Tethys and Austral Pacific (original histogram of Merle et al. (2011: 38, fig. 11B) updated from this paper, Pacaud 2018; Pacaud et al. 2017; Merle & Pacaud 2019; Kovács & Vicián 2019; Merle & Landau 2020; Ledon et al. 2023; Lozouet 2023). It illustrates the Switch phase with the increase of the proportion of the Tethysian and Pacific species.