Bonapartenykus
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Bonapartenykus is an extinct genus of alvarezsauroid dinosaur that lived during the Late Cretaceous of what is now the Allen Formation of the Río Negro Province, Argentina. The genus contains a single
Outcrops of the Allen Formation in Argentina
Reconstructed skeleton of the closely related Patagonykus
Patagonykuspuertai
Confuciusornis plumage pattern
Alvarezsauridae
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Alvarezsauridae is a family of small, long-legged dinosaurs. Although originally thought to represent the earliest known flightless birds, they are now thought to be an early diverging branch of manir
Bonapartenykus
…surface that is deeply concave with a sharp bony margin that surrounds it, which might be procoelous. The neural spine is proportionally taller than in Mononykini, but also resembles the condition seen in basal alvarezsauroids such as Haplocheirus. As in Mononykus and Patagonykus, both the prespinal and postspinal…
Mononykus
Alvarezsaurus
Life restoration of Shuvuuia deserti