Enantiornithes
Enantiornithes (nomen zoologicum a Cyrillo Walker anno 1981 statutum) est subclassis exstincta (aut apud alios cladus inordinatus) avium quae aevo Cretaceo vivebant.

Bibliographia 
 Fabien Knoll et al., "A diminutive perinate European Enantiornithes reveals an asynchronous ossification pattern in early birds" in Nature Communications vol. 9 (2018) no. 937
 C. A. Walker, "New subclass of birds from the Cretaceous of South America" in Nature vol. 292 (1981) pp. 51–53

Nexus externi 

Enantiornithes
Subclasses animalium
Taxa Walker
Taxa 1981
Taxa intercalaria
Cretaceo nata
Cretaceo exstincta