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Judinornis

Judinornis is a genus of prehistoric flightless birds from the late Cretaceous period. The single known species is Judinornis nogontsavensis. Its fossils have been found in Nemegt Formation rocks of southern Mongolia, and though the age of these deposits is not fully resolved, Judinornis probably lived some 70 million years ago during the early Maastrichtian.

Judinornis
Temporal range: Late Cretaceous, 70 Ma
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: Theropoda
Clade: Avialae
Clade: Hesperornithes
Genus: Judinornis
Nessov & Borkin, 1983
Species:
J. nogontsavensis
Binomial name
Judinornis nogontsavensis
Nessov & Borkin, 1983

The Nemegt Formation does not seem to contain marine sediments. Consequently, and unlike its relatives, this was apparently a bird of estuaries and rivers running from the mountains thrown up by the Cimmerian orogeny through the arid lands of continental East Asia towards the Turgai Sea and the former Shigatze Ocean.[citation needed]

Judinornis was a member of the Hesperornithes, flightless toothed seabirds of the Cretaceous. Though its relationships to other members of this group are inadequately known, it appears to have been one of the more basal hesperornithines.[1]

References edit

  1. ^ Mortimer (2004)

Sources edit

  • Mortimer, Michael (2004). . Archived from the original on 2013-05-16. Retrieved 2 March 2012


judinornis, genus, prehistoric, flightless, birds, from, late, cretaceous, period, single, known, species, nogontsavensis, fossils, have, been, found, nemegt, formation, rocks, southern, mongolia, though, these, deposits, fully, resolved, probably, lived, some. Judinornis is a genus of prehistoric flightless birds from the late Cretaceous period The single known species is Judinornis nogontsavensis Its fossils have been found in Nemegt Formation rocks of southern Mongolia and though the age of these deposits is not fully resolved Judinornis probably lived some 70 million years ago during the early Maastrichtian JudinornisTemporal range Late Cretaceous 70 Ma PreꞒ Ꞓ O S D C P T J K Pg N Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClade DinosauriaClade SaurischiaClade TheropodaClade AvialaeClade HesperornithesGenus JudinornisNessov amp Borkin 1983Species J nogontsavensisBinomial name Judinornis nogontsavensisNessov amp Borkin 1983The Nemegt Formation does not seem to contain marine sediments Consequently and unlike its relatives this was apparently a bird of estuaries and rivers running from the mountains thrown up by the Cimmerian orogeny through the arid lands of continental East Asia towards the Turgai Sea and the former Shigatze Ocean citation needed Judinornis was a member of the Hesperornithes flightless toothed seabirds of the Cretaceous Though its relationships to other members of this group are inadequately known it appears to have been one of the more basal hesperornithines 1 References edit Mortimer 2004 Sources editMortimer Michael 2004 The Theropod Database Phylogeny of taxa Archived from the original on 2013 05 16 Retrieved 2 March 2012 nbsp This prehistoric bird article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Judinornis amp oldid 1191306015, wikipedia, wiki, book, books, library,

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