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Developmental variation in pterygoid segmentation clarifies patterns of avian bony palate evolution
Annabel K. Hunt, Juan Benito, Olivia Plateau…·Daniel J. Field
Micro-computed tomography of 69 immature and mature bird specimens finds complete post-hatching pterygoid segmentation (hemipterygoid detaches from pterygoid, fuses to palatine) only in Neoaves, not Galloanserae or palaeognaths.
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