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Hesperornithes

Hesperornithes
Hesperornis regalis
Nomenklatur
Hesperornithes
Fürbringer, 1888
Synonymi
Hesperornithiformes Sharpe, 1899
Klassifikasjon
RikeDyreriket
RekkeRyggstrengdyr
GruppeAvialae
Økologi
Antall arter: ukjent
Habitat: akvatisk
Utbredelse: nordlige halvkule
Inndelt i
  • Baptornis
  • Brodavis
  • Enaliornis
  • Judinornis
  • Pasquiaornis
  • Potamornis
  • †Hesperornithidae

Hesperornithes eller Hesperornithiformes var en gruppe med høyt spesialiserte forhistoriske fugler som levde i krittiden. Artene hadde lange kraftige nebb med tenner og var tilpasset et akvatisk miljø på den nordlige halvkule. Fuglene var trolig rovgriske vannfugler som ikke kunne fly.

Grunnleggende anetre for fugler, forenklet etter Chiappe (2007).[1]

Avialae 

Archaeopteryx (urfugler)


 Pygostylia 

Confuciusornithidae


 Ornithothoraces 

Enantiornithes (omvendte fugler)


 Ornithurae 

Hesperornithiformes



Aves/Neornithes (nåtidsfugler)






Etterkommertre

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I studie fra 2015 fant følgende slektsforhold blant artene i Hesperornithiforms.[2]

Hesperornithiformes

Pasquiaornis




Enaliornis



Baptornithidae

Baptornis advenus



Brodavidae

Brodavis varneri



Brodavis baileyi





USNM 20030


Hesperornithidae

Parahesperornis alexi



Hesperornis









Referanser

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  1. ^ Chiappe, Luis M. (2007). Glorified Dinosaurs: The Origin and Early Evolution of Birds. University of New South Wales Press, Sydney. ISBN 978-0-86840-413-4.
  2. ^ Bell, A.; Chiappe, L. M. (2015). «A species-level phylogeny of the Cretaceous Hesperornithiformes (Aves: Ornithuromorpha): Implications for body size evolution amongst the earliest diving birds». Journal of Systematic Palaeontology: 1. doi:10.1080/14772019.2015.1036141. 

Eksterne lenker

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Hesperornithes
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