province, China: Yanornis martini, based on several fossils found in the 120-million-year-old Jiufotang Formation at Chaoyang, and Yanornis guozhangi, from...

it might be a specimen of Yanornis. Thus, this same fossil specimen has been named "Archaeoraptor", Archeovolans, and Yanornis in different places. Across...

more primitive than Yanornis  but more advanced than Hongshanornis, or even a member of the specific group containing both Yanornis  and Yixianornis. The...

derived pygostyle, with a ploughshare-shaped end. An early example is Yanornis. Many were coastal birds, strikingly resembling modern shorebirds, like...

"yanornithids", which had been previously named to contain the similar species Yanornis and Yixianornis. At least one study has found Hollanda from the Late Cretaceous...

relative of Yanornis and together with this and Yixianornis may form a clade. It is sometimes considered to be the same genus as Yanornis (which, described...

Parahongshanornis Tianyuornis †Songlingornithidae Hollanda? Piscivoravis? Songlingornis Yanornis? Yixianornis? †Yanornithidae Abitusavis Similiyanornis Yanornis...

failed to recover a monophyletic Songlingornithidae, instead finding Yanornis to form a clade with the newly described genera Abitusavis and Similiyanornis...

morphologies resembling those of extant insectivorous or raptorial birds, while Yanornis and Iteravis had cervical morphologies closer to those of extant generalist...

Parahongshanornis Tianyuornis †Songlingornithidae Hollanda? Piscivoravis? Songlingornis Yanornis? Yixianornis? †Yanornithidae Abitusavis Similiyanornis Yanornis...