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Argentinosaurus (meaning "lizard from Argentina") is a genus of giant sauropod dinosaur that lived during the Late Cretaceous period in what is now Argentina.Although it is only known from fragmentary remains, Argentinosaurus is one of the largest known land animals of all time, perhaps the largest, measuring 30–35 m (98–115 ft) long and weighing 65–80 t (72–88 short tons).
Size comparison of selected giant sauropod dinosaurs (from left to right): Supersaurus, Argentinosaurus, Diplodocus, Mamenchisaurus, and Sauroposeidon. A mega-sauropod, Maraapunisaurus fragillimus (previously known as Amphicoelias fragillimus), is a contender for the largest-known dinosaur in history.
Advanced titanosaurs had no digits or digit bones, and walked only on horseshoe-shaped "stumps" made up of the columnar metacarpal bones. [ 40 ] Print evidence from Portugal shows that, in at least some sauropods (probably brachiosaurids), the bottom and sides of the forefoot column was likely covered in small, spiny scales, which left score ...
[13] [14] Wedel also criticised the polygon-based method that Carballido and colleagues used to compare the sizes of Patagotitan and Argentinosaurus ' vertebrae, noting that the former was largely empty space. [15] In other studies, Argentinosaurus has been estimated at 65–96.4 tonnes (71.7–106.3 short tons).
Bones from several similar-sized individuals were incorporated into the skeleton now mounted and on display at the Museum für Naturkunde Berlin; [22] this mount is 12–13.27 metres (39.4–43.5 ft) tall and 21.8–22.5 metres (72–74 ft) long, [23] [24] [25] and would have belonged to an animal that weighed between 30,000 to 60,000 kilograms ...
It is incomplete, apart from bone fragments containing two fused posterior sacral vertebrae, two anterior caudal vertebrae, both incomplete scapulae, two humeri and a metacarpal. The Paralititan type specimen shows evidence of having been scavenged by a carnivorous dinosaur as it was disarticulated within an oval of eight metres length with the ...
The holotype bones of the skeletally immature Galeamopus pabsti are comparable in size, including a 116 centimetres (46 in)-long femur and 84.5 centimetres (33.3 in)-long tibia. [10] The subadult Galeamopus pabsti holotype individual is estimated at 18.2 metres (60 ft) long.
Isolated vertebrae and limb bones suggest that it could have reached sizes comparable to Argentinosaurus and Puertasaurus, which would make it the absolute largest dinosaur known from North America. [2] Its fossils have been recovered from a variety of rock formations spanning the Maastrichtian age.