Amargatitanis Skeletal

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Skeletal diagram of the South American basal dicraeosaurid sauropod dinosaur Amargatitanis macni. This diagram depicts the type and only known specimen, MACN PV N53. The taxonomic affinities of Amargatitanis have been uncertain, with it originally being classified as a titanosaur before being reclassified as a dicraeosaurid, either close to Suuwassea or Bajasaurus and Pilmatueia. The unknown regions have been based on Amargasaurus (trunk, forelimbs, and neck), Bajadasaurus (skull), Pilmatueia (neck), Dicraeosaurus (tail and hindlimb), Suuwassea (hindlimb), and Lingwulong (pelvis).

Key

•   Known
•   Unknown

Scale bar=1 metre (3.3 ft)

References

• Gallina, Pablo Ariel (2016). "Reappraisal of the Early Cretaceous sauropod dinosaur Amargatitanis macni (Apesteguía, 2007), from northwestern Patagonia, Argentina". Cretaceous Research 64: 79e87.
• Windholz, G.J.; Coria, R.A.; Bellardini, F.; Baiano, M.A.; Pino, D.; Ortega, F.; Currie, P.J.. "On a dicraeosaurid specimen from the Mulichinco Formation (Valanginian, Neuquén Basin) of Argentina and phylogenetic relationships of the South American dicraeosaurids (Sauropoda, Diplodocoidea)". Comptes Rendus Palevol 21 (45): 991–1019.
• Salgado, L.; Bonaparte, J.F. (1991). "Un nuevo sauropodo Dicraeosauridae, Amargasaurus cazaui gen. et sp. nov., de la Formacion La Amarga, Neocomiano de la Provincia del Neuquén, Argentina". Ameghiniana 28 (3-4): 333–346. Translated by Harris, J.D; Lamanna, M.C., the Polyglot Paleontologist, January 2003.
• Gallina, P. A.; Apesteguía, S.; Canale, J.I.; Haluza, A. (2019). "A new long-spined dinosaur from Patagonia sheds light on sauropod defense system". Scientific Reports 9: 1392. DOI:10.1038/s41598-018-37943-3.
• Janensch, W. (1929). "Die Wirbelsäule der Gattung Dicraeosaurus". Palaeontographica, Supplement VIII 1 (2): 37-133. Translated by Klutzny, S., the Polyglot Paleontologist, May 2002.
• Harris, Jerald D. (2006). "The significance of Suuwassea emilieae (Dinosauria: Sauropoda) for flagellicaudatan intrarelationships and evolution". Journal of Systematic Palaeontology 4 (2): 185-198.
• Harris, Jerald D. (2007). "The appendicular skeleton of Suuwassea emilieae (Sauropoda: Flagellicaudata) from the Upper Jurassic Morrison Formation of Montana (USA)". Geobios 40 (4): 501-522.
• Xu, Xing; Upchurch, Paul; Mannion, Philip D.; Barrett, Paul M.; Regalado-Fernandez, Omar R.; Mo, Jinyou; Ma, Jinfu; Liu, Hongan (2018). "A new Middle Jurassic diplodocoid suggests an earlier dispersal and diversification of sauropod dinosaurs". Nature Communications 9: 2700.

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