Extended Data Fig. 5: Geometric morphometric analysis of rostrum shape in Falcatakely among avians.
From: Late Cretaceous bird from Madagascar reveals unique development of beaks
Plot of the first two principal components of the three-dimensional landmark analysis of total rostrum shape of Falcatakely and extant avian taxa. Whereas the unique configuration of the maxilla and premaxilla in Falcatakely is more similar to those of non-avialan paravians (Fig. 3), the overall three-dimensional rostrum phenotype occupies the morphospace that is converged on by subsequent radiations of neornithine birds (Supplementary Data). See Supplementary Information for analytical protocols.
