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. 2011 Jan 24;108(6):2328–2333. doi: 10.1073/pnas.1018956108

Fig. 2.

Fig. 2.

Lineage diversity maps of oscine passerine birds. Each lineage is mapped out as the distribution of all extant members in a single layer (for details on taxa and number of lineages, see Table S2 and S3). (A) Present distribution of the 11 basal oscine lineages that existed 25 Mya. All of these lineages occur in Australia. Maximum pixel value (red) in Australia is 11. (B) Present distribution of the 12 transitional oscine lineages (Passerida excluded) that existed 25 Mya. Maximum pixel value (red) in New Guinea is 8. (C) Present distribution of the 34 lineages of core Corvoidea that existed 25 Mya. Maximum pixel value (red) in New Guinea is 23.