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Temporal range: late Eocene - early Oligocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Gruiformes
Family: Messelornithidae
Genus: Itardiornis
Mourer-Chauviré, 1995
Species: I. hessae
Binomial name
Itardiornis hessae
Mourer-Chauviré, 1995

Itardiornis is an extinct genus of the family Messelornithidae from late Eocene and early Oligocene. Only one species is described, Itardiornis hessae, from Quercy fissure fillings.


  • Mayr, G. Paleogene Fossil Birds. Springer, 2009. p. 93.