Skeletal mount of Huallasaurus, an austrokritosaur, at the Natural Sciences Museum
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
†Ornithischia
Clade:
†Ornithopoda
Family:
†Hadrosauridae
Subfamily:
†Saurolophinae
Clade:
†Austrokritosauria Alarcón-Muñoz et al., 2023
Genera
†Bonapartesaurus
†Huallasaurus
†Kelumapusaura
†Secernosaurus
Austrokritosauria is an extinct clade of saurolophine dinosaurs known from the Late Cretaceous of South America. The clade provides evidence of a faunal exchange from North America during the Cretaceous.[1]
^Alarcón-Muñoz, Jhonatan; Vargas, Alexander O.; Püschel, Hans P.; Soto-Acuña, Sergio; Manríquez, Leslie; Leppe, Marcelo; Kaluza, Jonatan; Milla, Verónica; Gutstein, Carolina S.; Palma-Liberona, José; Stinnesbeck, Wolfgang; Frey, Eberhard; Pino, Juan Pablo; Bajor, Dániel; Núñez, Elaine; Ortiz, Héctor; Rubilar-Rogers, David; Cruzado-Caballero, Penélope (2023-06-16). "Relict duck-billed dinosaurs survived into the last age of the dinosaurs in subantarctic Chile". Science Advances. 9 (24). doi:10.1126/sciadv.adg2456. ISSN 2375-2548. PMC 10275600.
Austrokritosauria is an extinct clade of saurolophine dinosaurs known from the Late Cretaceous of South America. The clade provides evidence of a faunal...
relationships of saurolophines and hadrosaurids. They proposed the name Austrokritosauria for the clade of entirely South American saurolophines closely related...
to belong to their own group of saurolophine hadrosaurids called Austrokritosauria. Both groups likely dispersed to South America from North America...
migrated into South America from North America, giving rise to the clade Austrokritosauria, which is closely related to the tribe Kritosaurini. During the late...
Alarcón-Muñoz et al. recovered Bonapartesaurus as a member of the Austrokritosauria, a clade of entirely South American saurolophines closely related...
Huallasaurus, Kelumapusaura, and other South American saurolophines as the Austrokritosauria, recovering it as the sister taxon to the Kritosaurini. The results...
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