Muyelensaurus

Muyelensaurus (meaning "Muyelen lizard", after an indigenous name for the Colorado River in Argentina) is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous of Argentina. It was more slender than other titanosaurs. Fossils have been recovered from the Plottier Formation in the Neuquén province of Patagonia. The type species is M. pecheni.[1] The name Muyelensaurus first appeared in a 2007 paper by Argentine paleontologists Jorge Calvo of the Universidad Nacional del Comahue and Bernardo González Riga of the Laboratorio de Paleovertebrados, and Brazilian paleontologist Juan Porfiri of the Universidade Federal do Rio de Janeiro.

Muyelensaurus
Temporal range: late Coniacian-early Santonian
~88–86 Ma
Scientific classification
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Muyelensaurus

Calvo et al. 2007
Species
  • M. pecheni Calvo et al. 2007 (type)

Classification

The cladogram below follows Franca et al. (2016), placing Muyelensaurus as a basal lithostrotian.[2]

Lithostrotia

Malawisaurus

Muyelensaurus

Nemegtosauridae

Nemegtosaurus

Tapuiasaurus

Rapetosaurus

Saltasauroidea

Diamantinasaurus

Baurutitan

Isisaurus

Saltasauridae

Alamosaurus

Opisthocoelicaudia

Neuquensaurus

Saltasaurus

Aeolosaurini

Maxakalisaurus

Panamericansaurus

Rinconsaurus

Gondwanatitan

Aeolosaurus maximus

Aeolosaurus colhuehuapensis

Aeolosaurus rionegrinus

The cladogram below follows Mocho et al. (2019), this time placing Muyelensaurus within Rinconsauria.[3]

Lithostrotia

Malawisaurus

Paludititan

Lohuecotitan

Epachthosaurus

Opisthocoelicaudiinae

Alamosaurus

Opisthocoelicaudia

Saltasaurinae

Neuquensaurus

Rocasaurus

Saltasaurus

Lirainosaurinae

Lirainosaurus

Atsinganosaurus

Ampelosaurus

Bonatitan

Rapetosaurus

Nemegtosaurus

Aeolosaurinae

Gondwanatitan

Aeolosaurus

Rinconsauria

Rinconsaurus

Muyelensaurus

Bonitasaura

Lognkosauria

Mendozasaurus

Futalognkosaurus

References

  1. Muyelensaurus at Fossilworks.org
  2. França, M.A.G.; Marsola, J.C.d A.; Riff, D.; Hsiou, A.S.; Langer, M.C. (2016). "New lower jaw and teeth referred to Maxakalisaurus topai (Titanosauria: Aeolosaurini) and their implications for the phylogeny of titanosaurid sauropods". PeerJ. 4: e2054. doi:10.7717/peerj.2054. PMC 4906671. PMID 27330853.
  3. Mocho P, Páramo A, Escaso F, Marcos-Fernández F, Vidal D, Ortega F. 2019. Titanosaurs from Lo Hueco (Campanian-Maastrichtian) reveal new information about the evolutionary history of European titanosaurs, pp. 111. In: The Palaeontological Association (ed.), 63rd Annual Meeting, 15th–21st December 2019, University of Valencia, Spain, Programme Abstracts, AGM papers

Bibliography

  • Calvo, J.O.; González-Riga, B.J.; and Porfiri, J.D. (2007) "A new titanosaur sauropod from the Late Cretaceous of Neuquén, Patagonia, Argentina." Arquivos do Museu Nacional, Rio de Janeiro 65(4):485-504 PDF
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