Fig. 2From: Single origin of the Mascarene stick insects: ancient radiation on sunken islands?Chronogram of the sampled stick insect specimens with taxa distributed across the Indian Ocean highlighted in tones of red. Numbers at nodes indicate bootstrap values (left) and clade posterior probabilities (right); grey bars show 95Â % highest probability density. Circled numbers refer to fossil calibration points: (1) Renphasma [56], (2) Eophasma [61], (3) fossil Malacomorpha [63], (4) fossil Clonistria [63]. Pl Pliocene, Qu QuaternaryBack to article page