Presbyornithidae is an
extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
group of
birds with a global distribution. They had evolved by the late
Cretaceous period and became extinct during the early
Miocene. Initially, they were believed to present a mix of characters shown by waterbirds,
shorebirds and
flamingos and were used to argue for an evolutionary relationship between these groups,
but they are now generally accepted to be
waterfowl closely related to modern ducks, geese, and
screamers.
They were generally long-legged, long-necked birds, standing around one meter high, with the body of a duck, feet similar to a
wader but
webbed, and a flat duck-like bill adapted for
filter feeding. At least some species were social birds that lived in large flocks and nested in colonies, while others, like the ''
Wilaru
''Wilaru'' is an extinct genus of bird of uncertain phylogenetic placement from the Late Oligocene to Early Miocene of Australia. It was originally classified as a stone-curlew, but subsequently it was argued to be a member of the extinct famil ...
'' species, were terrestrial and solitary.
Several
genera
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat ...
have been classified as presbyornithids:
* ''
Presbyornis
''Presbyornis'' is an extinct genus of anseriform bird. It contains two unequivocally accepted species; the well-known ''P. pervetus'' and the much lesser-known ''P. isoni''. ''P. pervetus'' was approximately the size and shape of a goose, but w ...
''
(type
Type may refer to:
Science and technology Computing
* Typing, producing text via a keyboard, typewriter, etc.
* Data type, collection of values used for computations.
* File type
* TYPE (DOS command), a command to display contents of a file.
* Ty ...
)
* ''
Bumbalavis''
* ''
Headonornis''
(disputed)
* ''
"Styginetta"
* ''
Telmabates''
* ''
Teviornis''
* ''
Proherodius''
* ''
Zhylgaia
''Zhylgaia'' is a genus of fossil bird. Its remains, consisting of two partial humeri, were recovered from an upper Paleocene deposit in Kazakhstan.
The relationships of this genus are unknown; it was initially placed in the Presbyornithidae, wh ...
''
* ''
Wilaru
''Wilaru'' is an extinct genus of bird of uncertain phylogenetic placement from the Late Oligocene to Early Miocene of Australia. It was originally classified as a stone-curlew, but subsequently it was argued to be a member of the extinct famil ...
''
There are some other, undescribed, presbyornithid or possible presbyornithid remains, such as the partial right
scapula BMNH PAL 4989, which was considered part of ''Headonornis hantoniensis'', but cannot be positively refererred to a known taxon, or the Late Cretaceous remains from the Mongolian
Barun Goyot Formation at
Uday Sayr Uday or Odai is a masculine name in Arabic as well as several Indian languages. In many Indian languages it means 'dawn' or 'rise'. The Arabic name (عدي) means 'runner' or 'rising'.
List of people
* Uday Benegal, Indian musician
* Uday Pratap S ...
and the
Nemegt Formation of
Tsagaan Kushu Tsagaan (Mongolian: цагаан, ''white'', zh, 查干) may refer to:
People
* Monguor people or ''Tsagaan mongghol'', a Mongol ethnic group in China
* Okna Tsahan Zam (born 1957), a Kalmyk throat singer
* Chagaan, 13th-century commander of th ...
.
References
External links
Reconstruction of ''Presbyornis'' at pixel-shack.com
{{Taxonbar, from=Q2262654
Prehistoric bird families
Prehistoric birds
Late Cretaceous first appearances
Rupelian extinctions
Tertiary extinctions of vertebrate taxa
Taxa named by Alexander Wetmore