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Welcome to our ANTARCTOSAURUS entry...
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ANTARCTOSAURUS

a herbivorous lithostrotian sauropod dinosaur from the Late Cretaceous of Argentina.
Pronunciation: an-TAHRK-toe-SOR-us
Meaning: Non-northern lizard
Author/s: Huene [1] (1929)
Synonyms: None known
First Discovery: Rio Negro, Argentina
Chart Position: 123

Antarctosaurus wichmannianus

Etymology
Antarctosaurus is derived from the Greek "ant" (opposite), "arktos" (north) and "sauros" (lizard) and not "lizard of the Antarctic" as the name may imply. We can't help thinking that von Huene (1929) should have opted for the vacant "Southern lizard" title to save a lot of confusion (Austrosaurus wasn't named until four years later).
The species epithet, wichmannianus, honors of R. Wichmann.
Discovery
The first fossils of Antarctosaurus were discovered 15km SW of General Roca City in the Anacleto Formation (formerly the Anacleto Member), Rio Colorado Subgroup (formerly the Rio Colorado formation), Neuquen Group, Río Negro, Argentina, by geologist Ricardo Wichmann in 1912.
The holotype (M.A.C.N. 6.804) is an incomplte skull and partial skeleton which includes bits of ribs, hind and fore limbs, foot and toe bones, a partial hip, shoulder blade, and other bits and bobs.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Campanian
Age range: 83-78 mya
Stats:
Est. max. length: 18 meters
Est. max. hip height: ?
Est. max. weight: 21 tons
Diet: Herbivore
References
• von Huene F. (1929) "Los saurisquios y ornitisquios del Cretacéo Argentino". Anales del Museo de La Plata (series 3) 3: 1-196. [In Spanish]
• Upchurch P., Barrett P.M. and Dodson P. (2004) Chapter Thirteen: "Sauropoda" in Weishampel, Dodson, and Osmólska (eds.) "The Dinosauria: Second Edition".
• "Antarctosaurus" in "The Age of Dinosaurs": Peter Dodson & Brooks Britt, Kenneth Carpenter & Catherine A. Forster, David D. Gillette & Mark A. Norell, George Olshevsky & Michael J. Parrish, David B. Weishampel
• Riabinin A.N. (1939) "The Upper Cretaceous vertebrate fauna of S. Kazakhstan".
• Arid F.M. and Vizotto L.D. (1971) "Antarctosaurus brasiliensis, um novo saurópode do Crétaceo superior do sul do Brasil". [Antarctosaurus brasiliensis, a new sauropod from the Upper Cretaceous of southern Brazil]. Anais do XXV Congresso Brasieiro de Geologia 297-305.
•F. v. Huene and C. A. Matley (1933) "The Cretaceous Saurischia and Ornithischia of the Central Provinces of India". Palaeontologica Indica (New Series), Memoirs of the Geological Survey of India 21(1):1-74.
• A. P. Hunt, M. G. Lockley, S. G. Lucas and C. A. Meyer (1995) "The global sauropod fossil record". Aspects of Sauropod Paleobiology. GAIA 10:261-279.
• J.A. Wilson, M. D'Emic, C.A. Curry Rogers, D.M. Mohabey and S. Sen (2009) "Reassessment of Sauropod Dinosaur Jainosaurus (="Antarctosaurus") septentrionalis from the Upper Cretaceous of India". Contributions from the Museum of Paleontology, University of Michigan, Vol. 32, No. 2, Page 17-40.
• Ariana Paulina Carabajal (2012) "Neuroanatomy of Titanosaurid Dinosaurs From the Upper Cretaceous of Patagonia, With Comments on Endocranial Variability Within Sauropoda".
• Novas F. (2009) "The Age of Dinosaurs in South America.
• D'Emic M. (2015) "Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922". Journal of Vertebrate Paleontology Volume 35, Issue 1.
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To cite this page:
Atkinson, L. "ANTARCTOSAURUS :: from DinoChecker's dinosaur archive".
›. Web access: 25th Jul 2017.
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