Development of cervical vertebrae of Colaptes melanochloros at different postnatal stages. A dorsal view, days 2–3, B dorsal view, days 9–10, C right lateral view, days 15–16, D right lateral view, days 20–21. Scale bar: 10 mm.

 
 
  Part of: Lyons S, Rosset SD, Picasso M, Acosta Hospitaleche C (2026) Functional and evolutionary insights from postnatal skull and cervical development in woodpeckers (Aves: Picinae). Vertebrate Zoology 76: 33-49. https://doi.org/10.3897/vz.76.e173317