Opinions from J. K. O'Connor et al. 2014

  • 'Ambiortus belongs to Ornithuromorpha'
  • 'Apsaravis belongs to Ornithuromorpha'
  • 'Archaeopteryx belongs to Aves'
  • 'Avisaurus belongs to Enantiornithes'
  • 'Avisaurus archibaldi belongs to Avisaurus'
  • 'Baptornis belongs to Ornithuromorpha'
  • 'Baptornis advenus belongs to Baptornis'
  • 'Baptornis varneri belongs to Baptornis'
  • 'Boluochia belongs to Enantiornithes'
  • 'Cathayornis belongs to Enantiornithes'
  • 'Changchengornis belongs to Confuciusornithiformes'
  • 'Chaoyangia belongs to Enantiornithes'
  • 'Concornis belongs to Enantiornithes'
  • 'Confuciusornis belongs to Confuciusornithiformes'
  • 'Confuciusornis dui belongs to Confuciusornis'
  • 'Didactylornis belongs to Sapeornithiformes'
  • 'Elsornis belongs to Enantiornithes'
  • 'Enaliornis belongs to Ornithuromorpha'
  • 'Eoalulavis belongs to Enantiornithes'
  • 'Eoconfuciusornis belongs to Confuciusornithiformes'
  • 'Eoenantiornis belongs to Enantiornithes'
  • 'Evgenavis belongs to Enantiornithes'
  • 'Evgenavis nobilis belongs to Evgenavis'
  • 'Gansus belongs to Ornithuromorpha'
  • 'Gobipteryx belongs to Enantiornithes'
  • 'Hesperornis belongs to Ornithuromorpha'
  • 'Hollanda belongs to Ornithuromorpha'
  • 'Hongshanornis belongs to Ornithuromorpha'
  • 'Iberomesornis belongs to Enantiornithes'
  • 'Ichthyornis belongs to Ornithuromorpha'
  • 'Jeholornis belongs to Pygostylia'
  • 'Jinzhouornis belongs to Confuciusornithiformes'
  • 'Jinzhouornis zhangjiyingia belongs to Jinzhouornis'
  • 'Jixiangornis belongs to Pygostylia'
  • 'Limenavis belongs to Ornithuromorpha'
  • 'Longicrusavis belongs to Ornithuromorpha'
  • 'Longipteryx belongs to Enantiornithes'
  • 'Longirostravis belongs to Enantiornithes'
  • 'Mystiornis belongs to Enantiornithes'
  • 'Neuquenornis belongs to Enantiornithes'
  • 'Otogornis belongs to Enantiornithes'
  • 'Parahesperornis belongs to Ornithuromorpha'
  • 'Patagopteryx belongs to Enantiornithes'
  • 'Pengornis belongs to Enantiornithes'
  • 'Protopteryx belongs to Enantiornithes'
  • 'Rahonavis belongs to Pygostylia'
  • 'Rapaxavis belongs to Enantiornithes'
  • 'Sapeornis belongs to Sapeornithiformes'
  • 'Schizooura belongs to Enantiornithes'
  • 'Shanweiniao belongs to Enantiornithes'
  • 'Shenqiornis belongs to Enantiornithes'
  • 'Shenzhouraptor belongs to Pygostylia'
  • 'Songlingornis belongs to Ornithuromorpha'
  • 'Soroavisaurus belongs to Enantiornithes'
  • 'Vescornis belongs to Enantiornithes'
  • 'Vorona belongs to Enantiornithes'
  • 'Yanornis belongs to Ornithuromorpha'
  • 'Yixianornis belongs to Ornithuromorpha'
  • 'Zhongjianornis belongs to Enantiornithes'
  • 'Zhongornis belongs to Pygostylia'