Glut in 1982 listed it as among the most massive theropods in their surveys, thought to be 15 meters (49 feet) long and weigh 6.6 short tons. Since it's discovery, Spinosaurus has always been a contender for largest carnivorous theropod, in 1926 Friedrich von Huene and Donald F.
The current, estimated, length of Spinosaurus is anywhere between 41 to 53 feet (12.6 to 17 meters). The current size estimations for Spinosaurus suggest a length estimation between 15 to 17 meters long 6 to 7 meters tall and weighted between 6.5 to 7.5 tonnes (lowest estimates) 9 - 12.5 tons. Two species of Spinosaurus have been named: Spinosaurus aegyptiacus (meaning "Egyptian spined lizard") and the disputed Spinosaurus maroccanus (meaning "Moroccan spine lizard"). It gets its name from the sail on its Dorsal vertebrae. The name Spinosaurus means, spine lizard in Latin.
The first remains have been officially discovered in Egypt in 1912 and named by paleontologist Ernst Stromer, in 1915 however, the original remains were destroyed in World War II. The weight issue still debatable and Spinosaurus may have weighed as much as Nizar Ibrahim estimated. The Newest estimates suggest a weight of 9.1 to 10+ tons according to latest studies of Nizar Ibrahim and newest specimens attributed to Spinosaurus, such as NMC humerus.
In 20 new size estimates based on a more complete studies, suggest a weight of 7.1-8.3 short tons and a length of 49-53 feet (15-17 meters). Several estimates published in 2005, 20 suggest it was 12.6-18 meters (41- 59 feet) long, and weighed between 7.7 to 12.0 short tons. Spinosaurus were among the largest known of all carnivorous dinosaurs, estimated as either being the same size or bigger than Tyrannosaurus, Giganotosaurus, and Carcharodontosaurus. The interpretations arise from inconsistencies with the pursuit predator model by Ibraham et.al. conclude that Spinosaurus was more akin to Generalist wading animal species instead of highly specialized aquatic species in a recent paper. However, recent scientific publication does not synonymize Sigilmassasaurus with Spinosaurus. aegyptiacus, and more recently others proposed it to be a distinct taxon yet again with a new mid-cervical vertebra. The contemporary spinosaurid genus Sigilmassasaurus has been synonymized by some authors with S. Fortunately, more Additional material from other individuals have been found and come to light in the 21st century, though lots of jaw pieces and other material are sold and kept in private collections, lost to science. The original Holotype remains were destroyed in World War II in a bombing raid, in 1944 by the British RAF. The first known remains were found in Egypt by the German paleontologist Ernst Stromer in 1912, then described and named in 1915. Spinosaurus aegyptiacus (meaning "spined lizard") is an extinct genus of large spinosaurid theropod dinosaur that inhabited early to middle Cretaceous ( Cenomanian) in Northern Africa, states such as Morocco, Egypt, Tunusia, Libya approximately 99 to 93.5 million years ago. Spinosaurus and other Spinosauridae fossil locations ?Oxalaia quilombensis Kellner et al., 2011.?Sigilmassasaurus brevicollis Russell, 1996.An artist's rendering of Spinosaurus aegyptiacus (artwork produced by paleoartist Mark Witton)
0 kommentar(er)
