Amphicoelias fragillimus is estimated to have weighed between 120 and 130 tons, making it one of the heaviest dinosaurs known. However, due to the incomplete nature of its fossil remains, exact weight estimates can vary. The massive size and weight of this sauropod reflect its classification among the largest land animals to have ever existed.
Amphicoelias fragillimus.
56 ft (17m)
Assuming it existed, Amphicoelias fragillimus would have been a diplodocid sauropod, and therefore a specialized herbivore.
about 150 million years ago in the late Jurassic period
AMPHICOELIAS
Its Amphicoelias Pronounciation: Am - fee - co - eee - lee - yas Size: 790 tonnes 200 feet
Not that we know of. A. Fragillimus was well over 196 feet long, even the longest animal living today, the blue whale, is only about 113 feet long.
Seismosaurus was 84-90 feet tall. It was also 120-200 feet long. It is the 2nd largest and tallest dinosaur coming after its cousin, amphicoelias fragillimus.
Amphicoelias fragillimus is a genus of large sauropod dinosaur that lived during the Late Jurassic period, approximately 150 million years ago. It is known from limited fossil remains, primarily vertebrae, and is considered one of the largest dinosaurs ever, with estimates suggesting it could reach lengths of up to 130 feet or more. The dinosaur's name reflects its unique vertebral structure, which is thought to be more fragile compared to other sauropods, hence the species name "fragillimus." Due to the scarcity of fossils, much about its biology and ecology remains speculative.
The longest sauropod discovered so far is a sauropod called amphicoelias fragillimus. Scientist estimates that A. fragillimus was nearly 60 meters long, although scientists have only found one incomplete backbone and some of the fossils were lost after being studied.
There are many folkloristic legends about it, however,the dinosaur Amphicoelias fragillimus is said to be the biggest dinosaur ever lived on Earth.We may never know, but the strongest contender at present is the "Ultrasaurus" a kind of brachiosaur, but known only from a HUGE thighbone.
Amphicoelias was probably very similar to Diplodocus or Apatosaurus, just much larger.