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. 2014 Sep 30;12(9):e1001957. doi: 10.1371/journal.pbio.1001957

Figure 7. Coexistence of dc3 and the ulnare in a diverse sample of avian taxa.

Figure 7

(A) Whole-mount alcian blue staining in the Chilean tinamou showing co-existence and subsequent disappearance of the ulnare. (B) Histological section in a dorso-ventral stack of the Chilean tinamou showing coexistence of the ulnare and dc3. (C) Whole-mount alcian blue staining showing coexistence of the ulnare and dc3 in the Chilean lapwing. (D) Coexistence of ulnare and dc3 and disappearance of the ulnare in zebra finch. (E) Coexistence of ulnare and dc3 in (E) budgerigar, (F) pigeon, and (G) duck. Scale bars, (A and C) 400 µm, (B) 200 µm, (C, G, and F) 500 µm, and (E–D) 300 µm.