Ornithothoraces
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Ornithothoraces is a group of avialan dinosaurs that includes all enantiornithes and the euornithes, which includes modern birds and their closest ancestors. The name Ornithothoraces means "bird thora
Southern Ground Hornbill
Patagonykuspuertai
Confuciusornis plumage pattern
Patagopteryx deferrariisi
Euornithes
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Euornithes is a natural group which includes the most recent common ancestor of all avialans closer to modern birds than to the enantiornithines. This group was defined in the PhyloCode by Juan Benito
Ornithothoraces
…Ornithothoraces is a group of avialan dinosaurs that includes all enantiornithes ("opposite birds") and the euornithes ("true birds"), which includes modern birds and their closest ancestors. The name Ornithothoraces means "bird thoraxes". This refers to the modern…
Fossil specimen of Hongshanornis longicresta
Regulus regulus japonensis