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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: A North American stem turaco, and the complex biogeographic history of modern birds

Fig. 4

Comparison of hindlimb proportions among the major clades of Otidimorphae. Hindlimb Index is computed as the ratio between the sum of tarsometatarsus + tibiotarsus length, and femur length (illustrated on a silhouette of holotype skeleton of Foro panarium). Unlike crown group Musophagidae, F. panarium exhibited long, gracile legs more similar to a small bustard or the neomorphine cuckoo Dromococcyx phasianellus. The lowest Hindlimb Index value overall is exhibited by the putative stem cuculid, Eocuculus cf. cherpinae

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