Classification of Ji et al. 1999

Cl. Aves Linnaeus 1758 [bird]
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G. †Archaeopteryx Meyer 1861
Metornithes Perle et al. 1993
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Fm. †Alvarezsauridae Bonaparte 1991
Fm. †Confuciusornithidae Hou et al. 1995
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G. †Changchengornis Ji et al. 1999
+
G. †Confuciusornis Hou et al. 1995
+
Confuciusornis sanctus Hou et al. 1995
Ornithothoraces Chiappe and Calvo 1994
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Subcl. †Enantiornithes Walker 1981
Ornithurae Haeckel 1866
Invalid names: Sauriurae Haeckel 1866 [invalid subgroup]