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Euornithes

Euornithes
Fosilă:
Cretacic timpuriuPrezent,[1] 130.7–0 mln. ani în urmă
Restaurare Patagopteryx deferrariisi
Clasificare științifică
Regn: Animalia
Încrengătură: Chordata
Clasă: Sauropsida
Supraordin: Dinosauria
Ordin: Saurischia
Subordin: Theropoda
(neclasificat): Euornithes
Cope, 1889
Subgrupuri
  • Archaeorhynchus
  • Chaoyangia
  • Schizooura
  • Jianchangornis
  • Zhongjianornis
  • Ornithuromorpha
    • Alamitornis?
    • Apsaravis
    • Ambiortus
    • Bellulornis
    • Changzuiornis
    • Eogranivora
    • Gansus
    • Gargantuavis
    • Hollanda
    • Iteravis
    • Jiuquanornis
    • Mengciusornis
    • Patagopteryx
    • Vorona
    • Hongshanornithidae
    • Songlingornithidae
    • Ornithurae

Euornithes (din grecescul ευόρνιθες/euórnithes care înseamnă „păsări adevărate”) este un grup natural care include cel mai recent strămoș comun al tuturor aviarelor mai apropiate de păsările moderne decât de Sinornis.

Clarke și colab. (2006) au descoperit că cei mai primitivi euornitieni cunoscuți (Yanornithiformes) aveau caracteristici avansate și primitive. Aceste specii au păstrat trăsături primitive, cum ar fi coastele de burtă și o simfiză pubiană. Ei au aratat, de asemenea, primul pe deplin modern pigostil, iar specimenul tip al Yixianornis (IVPP 13631) păstrează opt pene alungite de la coadă într-un aranjament modern. Nu se cunosc pigostili mai timpurii care să păstreze un evantai de pene de acest fel; în schimb, aceștia prezintă doar o mulțime de pene scurte sau penaj pereche.[2]

Cladograma de mai jos urmărește rezultatele unei analize filogenetice de Lee și colab., 2014:[3]

Ornithothoraces

Enantiornithes

Euornithes

Archaeorhynchus

Jianchangornis

Zhongjianornis

Chaoyangia

Schizooura

Ornithuromorpha

Patagopteryx

Vorona

Ambiortus

†Songlingornithidae

†Hongshanornithidae

Apsaravis

Gansus

Hollanda

Ornithurae

Ichthyornis

†Hesperornithes

Limenavis

Aves (păsări moderne)

  1. ^ Min Wang; Xiaoting Zheng; Jingmai K. O’Connor; Graeme T. Lloyd; Xiaoli Wang; Yan Wang; Xiaomei Zhang; Zhonghe Zhou (). „The oldest record of Ornithuromorpha from the Early Cretaceous of China”. Nature Communications. 6: Article number 6987. doi:10.1038/ncomms7987. PMC 5426517Accesibil gratuit. PMID 25942493. 
  2. ^ Clarke, Julia A.; Zhou, Zhonghe; Zhang, Fucheng (). „Insight into the evolution of avian flight from a new clade of Early Cretaceous ornithurines from China and the morphology of Yixianornis grabaui. Journal of Anatomy. 208 (3): 287–308. doi:10.1111/j.1469-7580.2006.00534.x. PMC 2100246Accesibil gratuit. PMID 16533313. 
  3. ^ Lee, Michael SY; Cau, Andrea; Darren, Naish; Gareth J., Dyke (). „Morphological Clocks in Paleontology, and a Mid-Cretaceous Origin of Crown Aves”. Systematic Biology. 63 (3): 442–9. doi:10.1093/sysbio/syt110. PMID 24449041. 

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