Found in articles
ဍ။ Bertelli, S. (2013). "Another charadriiform-like bird from the lower Eocene of Denmark". Paleontological Journal 47 (11): 1282–1301. Pleiades Publishing
bird assemblage from the Ypresian of Belgium furthers knowledge of early Eocene avifaunas of the North Sea Basin. N Jb Geol Paläontol, Abh. 2019;291:253–281
group Galliformes and the earliest record for stem group Cuculidae from the Eocene of Djebel Chambi, Tunisia. "An unbiased molecular approach using 3'UTRs
ခွာစုံပါသော တိရစ္ဆာန်များပင်ဖြစ်ကြသည်။ "Anthracobunids from the Middle Eocene of India and Pakistan Are Stem Perissodactyls" (2014-10-08). PLOS ONE 9
Neognathae Superorder Galloanserae Galliformes (Gamebirds) – 45–0 Mya, Middle Eocene–present Anseriformes (Waterfowl) – 71–0 Mya, Late Cretaceous (Maastrichtian)–present