secundum Cau, 2018

Cladus: Carinatae
Cladi: Ornithurae – †Patagopterygiformes – †Ichthyornis

Synonyms

• Eurhipidurae Cope, 1889
• Ornithurae? Haeckel, 1866
• Ornithothoraces? Chiappe & Calvo, 1994

Primary references

• Merrem, B. 1813. Tentamen Systematis naturalis Avium. Abhandlungen der physikalischen Klasse der Königlich-Preussischen Akademie der Wissenschaften 237–259. BHL Reference page. 

• Haeckel, E. 1866. Generelle Morphologie der Organismen. Allgemeine Grundzüge der organischen Formen-Wissenschaft, mechanisch begründet durch die von Charles Darwin reformirte Descendenztheorie. Zweiter Band: Allgemeine Entwickelungsgeschichte der Organismen. clx + 462 pp., pls I–VIII. Berlin: Georg Reimer. BHL Reference page. 

• Cope, E.D. 1889. Synopsis of the Families of Vertebrata. The American Naturalist 23(274): 849–877. DOI: 10.1086/275018 BHL Reference page. 

• Chiappe, L.M. & Calvo, J.O. 1994. Neuquenornis volans, a new Late Cretaceous bird (Enantiornithes, Avisauridae) from Patagonia, Argentina. Journal of Vertebrate Paleontology 14(2): 230–246. DOI: 10.1080/02724634.1994.10011554 ResearchGate Reference page. 

Additional references

• Cau, A. 2018. The assembly of the avian body plan: a 160-million-year long process. Bolletino della Società Paleontologica Italiana 57(1): 1–25. DOI: 10.4435/BSPI.2018.01 ResearchGate Reference page. 

• Gauthier, J. & de Queiroz, K. 2001. Feathered dinosaurs, flying dinosaurs, crown dinosaurs, and the name "Aves". pp. 7–41. In Gauthier, J. & Gall, L.F. (eds.) New Perspectives on the Origin and Early Evolution of Birds: Proceedings of the International Symposium in Honor of John H. Ostrom. New Haven: Peabody Museum of Natural History. ISBN 0-912532-57-2 hdl: 10088/4690 Reference page. 
• Cracraft, J. 1986. The origin and early diversification of birds. Paleobiology 12(4): 383–399.
• Lee, M.S.Y., Cau, A., Naish, D., Dyke, G.J. May 2014. Morphological Clocks in Paleontology, and a Mid-Cretaceous Origin of Crown Aves. Systematic Biology 63(3): 442–449. DOI: 10.1093/sysbio/syt110 PMID: 24449041