Figure 2.

Schematic representation of elephantid mtDNA phylogenies under introgression scenarios. (a,b) Hypothetical mammoth (b) (this study) and observed African elephant (a) [38] cladograms, with male body size comparisons and predominant geographic ranges of the species indicated. Solid lines represent observed data; dashed lines represent predicted but presently unobserved lineages under an M. primigenius-M. columbi introgression hypothesis.

Enk et al. Genome Biology 2011 12:R51   doi:10.1186/gb-2011-12-5-r51
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