Biology:Qunkasaura

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Qunkasaura is a genus of saltasauroid titanosaur dinosaur from the Late Cretaceous (Campanian–Maastrichtian) Lo Hueco site of the Villalba de la Sierra Formation of Spain. The type species is Qunkasaura pintiquiniestra.

Discovery and naming

Excavation of the dorsal and caudal vertebrae and pelvis of Qunkasaura

The holotype specimen of Qunkasaura is a partial skeleton belonging to a single individual. It is part of a bonebed discovered in 2007, which includes the associated skeletons of multiple titanosaur taxa, as well as other dinosaurs, eusuchians, and many other animals.[1][2]

It was described as a new genus and species of titanosaur in 2024. The generic name, Qunkasaura, combines the name of Qunca or Kunka, a Spanish city that gave rise to the village of Fuentes in Cuenca, Castilla-La Mancha, Spain, where the Lo Hueco site is located, with the Greek word saura, meaning "lizard"; it also refers to Antonio Saura, a twentieth-century painter from Cuenca. The specific name, pintiquiniestra, refers to Queen Pintiquiniestra, a character from the novel Don Quixote by Miguel de Cervantes.[1]

Classification

In their phylogenetic analysis, Mocho et al. recovered Qunkasaura as the sister taxon to Abditosaurus within the saltasaurid subfamily Opisthocoelicaudiinae. Their analyses also found lirainosaurines to be close relatives of saltsaurids, leading Mocho et al. to name the clade Lohuecosauria to contain the two. A cladogram adapted from their analysis is shown below:[1]

Saltasauroidea
 
 

Rapetosaurus

 
 

Overosaurus

 
 
Lohuecosauria
 

Lirainosaurinae

 
 
 

Isisaurus

 
Saltasauridae
 

Saltasaurinae

 
Opisthocoelicaudiinae
 

Alamosaurus

 
 
 

Opisthocoelicaudia

 
 
 

Abditosaurus

 
 

Qunkasaura

 
 
 
 
 
 
 
 

References

  1. ↑ 1.0 1.1 1.2 Mocho, P.; Escaso, F.; Marcos-Fernández, F.; Páramo, A.; Sanz, J. L.; Vidal, D.; Ortega, F. (2024). "A Spanish saltasauroid titanosaur reveals Europe as a melting pot of endemic and immigrant sauropods in the Late Cretaceous". Communications Biology 7 (1): 1016. doi:10.1038/s42003-024-06653-0. PMID 39232208. 
  2. ↑ Ortega, F.; Bardet, N.; Barroso-Barcenilla, F.; Callapez, P. M.; Cambra-Moo, O.; Gómez, V. Daviero-; Díaz, V. Díez; Domingo, L. et al. (2015). "The biota of the Upper Cretaceous site of "Lo Hueco" (Cuenca, Spain)" (in en). Journal of Iberian Geology 41 (1): 83–99. doi:10.5209/rev_JIGE.2015.v41.n1.48657. ISSN 1886-7995. https://revistas.ucm.es/index.php/JIGE/article/view/48657. 

Wikidata ☰ Q130234520 entry