Enantiornis / © Daniel Bensen. Verwendet mit freundlicher Genehmigung des Autors
Enantiornis
© Daniel Bensen
Fossil des Liaoxiornis / © il_gatto_nero (Flickr.com). Creative Commons 2.0 Generic (CC BY-NC 2.0)
Fossil des Liaoxiornis
© il_gatto_nero
Cratoavis / © Deverson Pepi (Behance.net). Creative Commons 4.0 International (CC BY-NC 4.0)
Cratoavis
© Deverson Pepi
Fossil des Cratoavis / © Carvalho et al. Creative Commons 4.0 International (CC BY 4.0)
Fossil des Cratoavis
© Carvalho et al.