Figure 10 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe

Figure 10. Fossil-calibrated multi-locus ultrametric chronogram of the Margaritiferidae (after Lopes-Lima et al. (2018) with our additions). Bars indicate 95% confidence intervals of the estimated divergence times between lineages (Ma). Black numbers near nodes are mean ages (Ma). Stratigraphic chart according to the International Commission on Stratigraphy, 2015. Fossil species under discussion are in red. We illustrated a putative phylogenetic placement of fossil species, i.e. Pseudunio flabellatus (Goldfuss, 1837) comb. rev. as a stem lineage (MRCA of P. auricularius - P. homsensis clade) and P. flabellatiformis (Grigorowitch-Beresowski, 1915) comb. rev. as an extinct lineage (red branch with X-shaped terminal mark indicating an extinction event in the Late Pleistocene) related to P. auricularius and P. homsensis.