Reconstruction of Megapodius rokusi (left) alongside the Orange-footed Megapode (Megapodius reinwardt, right)（Image source：Meijer HJM et al. (2026)， CC BY 4.0 ） Age Quaternary（Chibanian-Late Pleistocene） 0.19-0.12 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Aves Order: Galliformes Family: Megapodiidae Genus: Megapodius Species: Megapodius rokusi Morphological description Megapodius rokusi was a large-bodied megapode belonging to the order Galliformes and the family

Reconstruction of Confuciusornis sanctus（Image source：Matt Martyniuk， CC BY-SA 3.0 ） Age Cretaceous（Barremian） 125-120 Ma Taxonomy Kingdom: Animalia Phylum: Chordata Class: Sauropsida Order: Confuciusornithiformes Family: Confuciusornithidae Genus: Confuciusornis Species: Confuciusornis sanctus Morphological description Confuciusornis sanctus was an early bird with a keratinous beak and completely edentulous jaws. The skull retained two distinct temporal fenestrae. The orbit

Reconstruction of Navaornis hestiae （Image source：TotalDino， CC BY 4.0 ） Age Cretaceous（ Late Cretaceous ） 85 - 75 Ma Taxonomy Kingdom：Animalia Phylum：Chordata Class：Sauropsida Order：Saurischia Genus： Navaornis Species： Navaornis hestiae Morphological description Navaornis hestiae possesses a toothless skull in which the premaxillae are fully fused into a single element with a convex dorsorostral surface. The jugal is strongly curved, while the quadratojugal is small and c

Reconstruction of Feitianius paradisi （Image source：Luxquine， CC BY-SA 4.0 ） Age Cretaceous（Aptian） 122 Ma Taxonomy Kingdom：Animalia Phylum：Chordata Class：Sauropsida Order：Saurischia Genus： Feitianius Species： Feitianius paradisi Morphological description Feitianius paradisi is a small enantiornithine bird, with a femur length of 27 mm, indicating a very small body size. The pygostyle is well developed, featuring a craniodorsal fork, ventrolateral processes, and a distally