Paralititan

Paralititan
Temporal range: Late Cretaceous, 98 Ma
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Artist's impression.
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Infraorder: Sauropoda
(unranked): Titanosauria
Genus: Paralititan
Smith et al., 2001
Species

P. stromeri Smith et al., 2001 (type)

Paralititan (meaning "tidal giant"[1]) was a giant titanosaurian sauropod dinosaur genus discovered in coastal deposits in the Upper Cretaceous Bahariya Formation of Egypt. The fossil represents the first tetrapod reported from the Bahariya Formation since 1935. Its 1.69 meter (5.54 ft) long humerus is longer than that of any known Cretaceous sauropod. The autochthonous, scavenged skeleton was preserved in tidal flat deposits containing fossil mangrove vegetation. The mangrove ecosystem it inhabited was situated along the southern shore of the Tethys Sea. Paralititan is the first dinosaur demonstrated to have inhabited a mangrove biome.[1]

Little of Paralititan is known, so its exact size is difficult to estimate. However the limited material suggests that it is one of the most massive dinosaurs ever discovered, with an estimated weight of 59 tonnes (65 short tons).[2] Using Saltasaurus as a guide, Carpenter estimated its length at around 26 meters (85 ft).[3] Like other titanosaurs, it had a wide-gauge stance and may have possessed osteoderms for defense. The Paralititan type specimen appears to have been scavenged by a meat-eater. It is also possible that Paralititan was hunted by large predatory dinosaurs such as Carcharodontosaurus.

Contents

Etymology

Paralititan stromeri means "Stromer's tidal (Greek para + halos "near sea") titan" or "Stromer's tidal giant". It was named by Joshua B. Smith, Matthew C. Lamanna, Kenneth J. Lacovara, Peter Dodson, Jennifer R. Smith, Jason C. Poole, Robert Giegengack and Yousri Attia in 2001 to honor Ernst Stromer von Reichenbach, a German paleontologist and geologist who found dinosaurs in this area in the early 1900s.[1]

In popular culture

Paralititan was featured in the 2009 documentary Monsters Resurrected. It was depicted as one of the most common herbivores of its time and regular food for Carcharodontosaurus, Rugops and Spinosaurus.[4] The discovery of Paralititan is chronicled in the 2002 documentary The Lost Dinosaurs of Egypt, narrated by Matthew McConaughey, and in the companion book The Lost Dinosaurs of Egypt: The Astonishing and Unlikely True Story of One of the Twentieth Century's Greatest Paleontological Discoveries[5].

References

  1. ^ a b c Smith, J.B.; Lamanna, M.C.; Lacovara, K.J.; Dodson, P.; Smith, J.R.; Poole, J.C.; Giegengack, R.; and Attia, Y. (2001). "A Giant sauropod dinosaur from an Upper Cretaceous mangrove deposit in Egypt". Science 292 (5522): 1704–1706. doi:10.1126/science.1060561. PMID 11387472. 
  2. ^ Burness, G.P. and Flannery, T. (2001). "Dinosaurs, dragons, and dwarfs: The evolution of maximal body size." Proceedings of the National Academy of Sciences, 98(25): 14518-14523.
  3. ^ Carpenter, K. (2006). "Biggest of the big: a critical re-evaluation of the mega-sauropod Amphicoelias fragillimus." In Foster, J.R. and Lucas, S.G., eds., 2006, Paleontology and Geology of the Upper Jurassic Morrison Formation. New Mexico Museum of Natural History and Science Bulletin 36: 131-138.
  4. ^ http://dsc.discovery.com/videos/monsters-resurrected-biggest-killer-dino.html
  5. ^ Nothdurft et al., 2002, The Lost Dinosaurs of Egypt: The Astonishing and Unlikely True Story of One of the Twentieth Century's Greatest Paleontological Discoveries, Random House, 272 p.

External links