Kelumapusaura

Kelumapusaura (meaning "red earth lizard") is a genus of saurolophine hadrosaur from the Late Cretaceous Allen Formation in what is now Patagonia in Argentina. The type and only species is K. machi, known from a bonebed of various individuals.[1]

Kelumapusaura
Temporal range: Mid Campanian-Maastrichtian
~
Life restoration
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Ornithischia
Clade: Ornithopoda
Family: Hadrosauridae
Subfamily: Saurolophinae
Tribe: Kritosaurini
Genus: Kelumapusaura
Rozadilla et al., 2022
Species:
K. machi
Binomial name
Kelumapusaura machi
Rozzadilla et al., 2022

Discovery

Kelumapusaura in its environment

The generic name, "Kelumapusaura," combines "kelumapu," the Mapudungun word for "red earth," and the feminine form of the Greek "sauros," meaning "lizard." The specific name, "machi," is derived from a word from the Mapuche people for "shaman."[1]

Description

The describing authors estimate that Kelumapusaura would have been 8 to 9 metres (26 to 30 ft) long.[1]

Classification

Depicted below is a reproduction of the phylogenetic tree produced by Rozadilla et al. (2022), including Kelumapusaura and Huallasaurus, which was described in the same study.[1]

Hadrosauridae 

Hadrosaurus foulkii

Yamatosaurus izanagii

Saurolophinae 

Acristavus gagslarsoni

Wulagasaurus dongi

Maiasaura peeblesorum

Probrachylophosaurus bergei

Brachylophosaurus canadensis

Kritosaurini 

Secernosaurus koerneri

Bonapartesaurus rionegrensis

Kelumapusaura machi

Huallasaurus australis

Kritosaurus navajovius

Gryposaurus notabilis

Gryposaurus monumentensis

Gryposaurus latidens

Rhinorex condrupus

Kamuysaurus japonica

Prosaurolophus maximus

Saurolophus osborni

Saurolophus angustirostris

Laiyangosaurus youngi

Kerberosaurus mankini

Shantungosaurus giganteus

Edmontosaurus annectens

Edmontosaurus regalis

Lambeosaurinae

Paleoecology

Kelumapusaura is known from the Late Cretaceous Allen Formation of Río Negro Province, Argentina. Many other dinosaurs, including titanosaurs, hadrosaurids, abelisaurids, dromaeosaurids, and alvarezsaurids have been named from the formation.[1]

Dinosaur fauna of the Allen Formation (Kelumapusaura in purple, right)

References

  1. Rozadilla, Sebastián; Brissón-Egli, Federico; Lisandro Agnolín, Federico; Aranciaga-Rolando, Alexis Mauro; Novas, Fernando Emilio (2022). "A new hadrosaurid (Dinosauria: Ornithischia) from the Late Cretaceous of northern Patagonia and the radiation of South American hadrosaurids". Journal of Systematic Palaeontology. doi:10.1080/14772019.2021.2020917.


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