Laplatasaurus

Jak číst taxoboxLaplatasaurus
Stratigrafický výskyt: Svrchní křída, stupeň kampán (asi před 84 až 72 miliony let)
alternativní popis obrázku chybí
Náčrt holenní a lýtkové kosti laplatasaura.
Vědecká klasifikace
Říšeživočichové (Animalia)
Kmenstrunatci (Chordata)
Třídaplazi (Sauropsida)
Nadřáddinosauři (Dinosauria)
Řádplazopánví (Saurischia)
PodřádSauropodomorpha
InfrařádSauropoda
RodLaplatasaurus
Binomické jméno
Laplatasaurus araukanicus
von Huene, 1929
Některá data mohou pocházet z datové položky.

Laplatasaurus ("ještěr z La Plata") byl rod velkého sauropodního dinosaura, žijícího v období svrchní křídy (geologický věk kampán, asi před 84 až 72 miliony let) na území dnešní argentinské Patagonie.

Historie

Fosilie tohoto sauropoda z kladu Titanosauria byly objeveny na třech lokalitách v sedimentech souvrství Allen a mají podobu různých kosterních fragmentů. Typový druh L. araukanicus byl popsán německým paleontologem Friedrichen von Huenem v roce 1929.[1] Jeho další historie je poměrně spletitá. V roce 2015 byla publikována studie, podle které byl Laplatasaurus titanosaurem, blízce příbuzným s rody Bonitasaura, Futalognkosaurus, Mendozasaurus a Uberabatitan.[2]

Rozměry

Délka tohoto sauropoda činila zřejmě kolem 18 metrů a hmotnost dosahovala zhruba 14 až 15 tun[3][4], což z něj dělá středně velkého zástupce této skupiny plazopánvých dinosaurů.

Reference

  1. Huene, F. von (1929). Los Saurisquios y Ornithisquios de Cretaceo Argentino. Anales Museo de La Plata, 2nd series, v. 3, p. 1-196.
  2. Pablo A. Gallina & Alejandro Otero (2015). Reassessment of Laplatasaurus araukanicus (Sauropoda: Titanosauria), from the Late Cretaceous of Patagonia, Argentina. Ameghiniana 52 (5): 487–501. doi: [1] Archivováno 27. 6. 2020 na Wayback Machine.
  3. Holtz, Thomas R., Jr.; Rey, Luis V. (2007). Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages (Aktualizovaný internetový dodatek, str. 34). New York: Random House. ISBN 978-0-375-82419-7. (anglicky)
  4. Paul, G. S. (2016). The Princeton Field Guide to Dinosaurs, 2nd Edition. Princeton University Press, str. 234 (anglicky)

Literatura

  • Powell, J. E. (2003). "Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects". Records of the Queen Victoria Museum, 111: 1-173.
  • Wilson, J. A. and Upchurch, P. (2003). "A revision of Titanosaurus Lydekker (Dinosauria-Sauropoda), the first dinosaur genus with a "Gondwanan" distribution". Journal of Systematic Palaeontology, 1(3): 125-160.
  • Upchurch, P., Barrett, P. M. and Dodson, P. (2004). Sauropoda. In The Dinosauria, 2nd edition. D. Weishampel, P. Dodson, and H. Osmólska (eds.). University of California Press, Berkeley. ISBN 0-520-24209-2, S. 259–322.
  • Salgado, L. & Coria, R. A. (2005). Sauropods of Patagonia: Systematic update and notes on Global Sauropod evolution. In. Thunder-Lizards. The Sauropodomorph Dinosaurs. Ed. V. Tidwell & K. Carpenter. Indiana University Press. Bloomington and Indianopolis. Indiana University Press, p. 430-453.

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