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. 1999 Apr 27;96(9):5111–5116. doi: 10.1073/pnas.96.9.5111

Figure 5.

Figure 5

Dorsal view of left hands of late embryos of Hoatzin (Opisthocomus: Neognathae) after ref. 7 (a) and Kiwis (Apteryx: Palaeognathae) after ref. 10 (b and c). DI–III, digits; CII–IV, condensations; MCI–III, metacarpals.