Fig. 4 in A molecular phylogeny of nephilid spiders: Evolutionary history of a model lineage

Fig. 4. Chronograms obtained under three different calibration schemes: (a) the fossil Nephila jurassica treated as stem orbicularian (red); (b) N. jurassica treated as stem nephilid (green); (c) N. jurassica treated as stem Nephila sensu stricto as implied by the original description (black). Inset plot shows posterior distribution of the ucld.mean parameter for each calibration scheme (color codes as in trees). The arrow and the dotted area in the plot indicate the mean and 95% interval of the ucld.mean estimated by Bidegaray-Batista and Arnedo (2011). Only the scheme shown in a falls roughly within the expected mitochondrial substitution rates. (For interpretation of the references to color in this figure legend, the reader is referred to the web version of this article.)