Linxiavis

Linxiavis Temporal range: Miocene, 9–6 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Pterocliformes
Family:	Pteroclidae
Genus:	†Linxiavis Li et al., 2020
Species:	†L. inaquosus
Binomial name
†Linxiavis inaquosus Li et al., 2020

Linxiavis inaquosus is an extinct species of sandgrouse known from a partial skeleton, found in the Late Miocene Liushu Formation (6–9 Ma) at the edge of the Tibetan Plateau in Gansu Province of China.^[1] It is the most substantial and oldest record of crown Sandgrouse in China which adds to the rapidly growing avian fauna of the Liushu formation.

Discovery, Research and History

Linxiavis was described in 2020 on the basis of articulated and associated elements of the wings, shoulder girdle, vertebrae, and hind limb that exhibited apomorphies of Columbiformes and Sandgrouses (Pteroclidae) such as a notarium, and a short coracoid shaft.

It was a part of the diverse "Hipparion fauna", which reinforces the consensus that late Miocene Linxia Basin was an arid savannah, associated with the uplift of the Tibetan Plateau. The holotype fossil suggests that the arid and high elevation Tibetan habitats may have been continuously occupied since the late Miocene by sandgrouse that would've been carrying water in their modified breast feathers to their young.

References

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Genera of pigeons, sandgrouse, mesites and their extinct allies

• Kingdom: Animalia
• Phylum: Chordata
• Class: Aves
• Clade: Neoaves
• Clade: Columbimorphae

Pteroclimesites
Mesitornithiformes Mesitornithidae Mesitornis Monias Pterocliformes Pteroclidae †Archaeoganga †Gerandia †Leptoganga †Linxiavis Pterocles Syrrhaptes

Columbiformes
Colombidae incertae sedis †Arenicolumba †Bountyphaps †Dysmoropelia †Lithophaps †Microena †Primophaps †Rupephaps Columbinae Zenaidini Geotrygon Leptotila Leptotrygon Starnoenas Zenaida Zentrygon Columbini Columba †Ectopistes Macropygia Nesoenas Patagioenas Reinwardtoena Spilopelia Streptopelia Turacoena Claravinae Claravis Columbina Metriopelia Paraclaravis Uropelia Raphinae Phabini Gallicolumba Geopelia Geophaps Henicophaps Leucosarcia Ocyphaps Pampusana Petrophassa Phaps Raphini Caloenas †Deliaphaps Didunculus Goura †Microgoura †Natunaornis Otidiphaps †Pezophaps †Raphus Trugon Turturini Alectroenas Chalcophaps Oena Phapitreron Turtur Treronini Treron Ptilinopini Cryptophaps Drepanoptila Ducula Gymnophaps Hemiphaga Lopholaimus Ptilinopus †Tongoenas

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