Extinct Aves Ancestral dinosaurian avialans including, but limited to, the Archaeopterygiformes, Scansoriopterygidae, Jeholornithiformes, Confuciusornithiformes, and Sapeornithiformes.
(Taxonomic Rank: Group)

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	Anchiornis   Group: Extinct Aves Archaeopteryx   Family: Archaeopterygidae Barawertornis   Order: Gastornithiformes Brontornis   Order: Gastornithiformes Changchengornis   Family: Confuciusornithidae Confuciusornis   Family: Confuciusornithidae Dromornis   Order: Gastornithiformes Eoconfuciusornis   Family: Confuciusornithidae Eosinopteryx   Group: Extinct Aves Epidexipteryx   Family: Scansoriopterygidae Gastornis   Order: Gastornithiformes Genyornis   Order: Gastornithiformes Ilbandornis   Order: Gastornithiformes Jeholornis   Family: Jeholornithidae Pedopenna   Family: Scansoriopterygidae Sapeornis   Family: Sapeornithidae Scansoriopteryx   Family: Archaeopterygidae Wellnhoferia   Family: Scansoriopterygidae Xiaotingia   Group: Extinct Aves Zhongornis   Group: Extinct Aves
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