Fig. 2

Time-calibrated phylogeny of carpet sharks based on mitochondrial DNA. Red arrows denote fossil-calibrated nodes used in the analysis. Blue bars and adjacent labels denote the confidence interval obtained using the program MCMCTree to sample the node ages. Values in italics represent bootstrap support for nodes. Colored boxes at tree tips represent modern ranges for species (blue = eastern Pacific Ocean, green = Atlantic Ocean, yellow = south western Indian Ocean, blue = north western Indian Ocean, black = central Indian Ocean, red = eastern Indian and western Pacific oceans north of Weber’s line, and Purple = eastern Indian and western Pacific oceans south of Weber’s line. Geologic periods are noted using gray and white boxes and associated text. Major clades of sharks are described by their common names and representative body form to the right of the tree. Globe created using rnaturalearth (https://github.com/ropensci/rnaturalearth)