Amargasaurus is a genus of sauropod dinosaur from the Early Cretaceous epoch of what is now Argentina. The only known skeleton was discovered in 1984 and is virtually complete, including a fragmentary skull. It was a large animal, but small for a sauro pod, reaching 9 to 10 meters in length. Most distinctively, it sported two parallel rows of tall spines down its neck and back.
About Amargasaurus in brief
Amargasaurus is a genus of sauropod dinosaur from the Early Cretaceous epoch of what is now Argentina. The only known skeleton was discovered in 1984 and is virtually complete, including a fragmentary skull. It was a large animal, but small for a sauro pod, reaching 9 to 10 meters in length. Most distinctively, it sported two parallel rows of tall spines down its neck and back, taller than in any other known saurood. It is classified as a member of the family Dicraeosauridae, which differs from other sauropods in showing shorter necks and smaller body sizes. The most striking features of the skeleton were the extremely tall, upwardly projecting neural spines on the neck and anterior dorsal vertebrae. The pelvic region was relatively wide, judging from the long, later, projecting transverse processes of the sacral vertebraes. Most of the hand and foot bones were not preserved, but Amargasosaurus probably possessed five digits in each hand. It showed a broad, broad, horselike snout equipped with pencil-like teeth, which are seen in other related saurosaurids. Only the rear part of the skull is preserved, which was more complete in other dicraoosaurids, the external narisaris, and the narisaurid nauplisaurus. It likely showed a horselik snout, which is broad, Horselik-like, and equipped with broad,Horselike teeth, as well as broad, horselike snout, horns, and a broad snout.
It probably fed at mid-height, as shown by the orientation of its inner ear and the articulation of its neck vertebraE, which suggest a habitual position of the snout 80 centimeters above the ground and a maximum height of 2. 7 meters. It had a barrel-shaped trunk supported by four column-like legs. The neck consisted of thirteen cervical vertebre, which were opisthocoelous, forming ball-and-socket joints with neighboring vertebras. The last two dorsal vertebras, the hip and the foremost, also had elongated spines; these were not bifurcated flared but into a paddle-shaped upper end of the pelvic region. A similar elongated neural spine has been described from the neck region of the closely related Bajadasaurus in 2019. Unlike in Amarg asaurus, this spine was bowed frontward and broadened toward the tips. It might have been used for display, combat, or defense. It may have exploited different food sources in order to reduce competition. It shared its environment with at least three other sa Kuropod genera, which might have exploited separate food sources. It also had a long tail and neck, a small head, and a barrelly trunk. It followed the typical sauroPod body plan, with a long Tail and neck and a large head. It weighed approximately 2. 6 metric tons.