Figure 1 in Neurovascular evidence for a co-occurrence of teeth and baleen in an Oligocene mysticete and the transition to filter-feeding in baleen whales

Figure 1. Hypothesis of baleen evolution. Relationships based on published phylogenetic analyses (Uhen, 2013; Fordyce & Marx, 2018; Peredo et al., 2018). Thick bars represent stratigraphic ranges downloaded from the Paleobiology Database (paleobiodb.org) on 14 February 2020, using the taxonomic name search form for each terminal taxon named on the cladogram. Red branches indicate presence of lateral palatal foramina.