Argentinosaurus

Argentinosaurus

Argentinosaurus var en stor dinosaurus der levede i Sydamerika i den sene kridttid, for omkring 97 til 94 millioner år siden.

Der er kun fundet få rester af dyret, og der er derfor knyttet en del usikkerhed til dyrets størrelse. Det blev oprindeligt anslået at have haft en længde på op til 30-35 meter, men nyere estimater anslår længden til mellem 22 og 26 meter. Dyrets vægt anslås at have været mellem 60-80 tons, og derved en af de største dinosaurer der nogensinde har levet på jordkloden.[1]

Se også

  • Patagotitan mayorum - en anden stor dinosaur

Eksterne henvisninger

  1. ^ Argentine Dinosaur Was an Estimated 130,000 Pounds, and Still Growing. New York Times Science
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Abeille-bee.svg
Forfatter/Opretter: Emmanuel Boutet, Licens: CC BY-SA 2.5
A black bee (Apis mellifera mellifera.
Argentinosaurus BW.jpg
Forfatter/Opretter: Nobu Tamura (http://spinops.blogspot.com), Licens: CC BY 3.0

A hypothetical life restoration of Argentinosaurus huinculensis, a titanosaur from the Late Cretaceous of Argentina, pencil drawing, digital coloring

• Based proportionally on skeletal reconstructions of Argentinosaurus by spinoinwonderland and randomdinos on DeviantArt[1][2] and other titanosaur reconstructions found online. This image is somewhat hypothetical as Argentinosaurus isn't known from complete remains; some of the proportions shown here, such as the neck, tail, forelimb length, and skull shape, are not certain and could be subject to change should more fossil material be found. The missing parts are inspired primarily by the more complete Patagotitan.
• Osteroderms are not yet known in Argentinosaurus. Osteoderms are known from at least 10 titanosaur genera spread across the family tree, including a relative Medozasaurus, but it's not clear if all titanosaurs had them.[3][4] Titanosaur osteoderms are rare and their layout and position on the body are not certain. The position and layout of the osteoderms have been loosely based on this interpretation, which is based on the work of Vidal et al 2015.[5][6]
• The colours and patterns, as with the majority of all prehistoric animal reconstructions, are speculative.


References

  1. ↑ SpinoInWonderland (June 16, 2017). Argentinosaurus huinculensis skeletal. DeviantArt. Retrieved on February 24, 2020.
  2. ↑ randomdinos (October 15, 2017). Argentinosaurus huinculensis schematic. DeviantArt. Retrieved on February 24, 2020.
  3. ↑ González Riga B (2003) A new titanosaur (Dinosauria, Sauropoda) from the Upper Cretaceous of Mendoza, Argentina. Ameghiniana 40 (2)
  4. ↑ Carrano, M.T. and D’Emic, M.D. 2015 'Osteoderms of the titanosaur sauropod dinosaur Alamosaurus sanjuanensis Gilmore, 1922'. Journal of Vertebrate Paleontology.
  5. ↑ Vidal, Daniel (2015). Osteodermos de Titanosaurio de Armuña - Titanosaur Osteoderms from the Upper Cretaceous of Armuña (Segovia, Spain). Blogger. Retrieved on February 24, 2020.
  6. ↑ Vidal, Daniel (2014-08-13). "Titanosaur Osteoderms from the Upper Cretaceous of Lo Hueco (Spain) and Their Implications on the Armor of Laurasian Titanosaurs". PLoS ONE 9 (8): e102488. DOI:10.1371/journal.pone.0102488. PMID 25118985. PMC: PMC4131861. ISSN 1932-6203.