Yuanmousaurus ‭(‬Yuanmou lizard‭)

Short Info

Yuanmousaurus ‭(‬Yuanmou lizard‭)

Phonetic : Yu-an-mow-sore-us.

Named By : J.‭ ‬Lü,‭ ‬S.‭ ‬Li,‭ ‬G.‭ ‬Wang,‭ ‬J.‭ ‬Zhang‭ & ‬Z.‭ ‬Dong‭ ‬-‭ ‬2006

Diet : Herbivore

Size : Estimated 17 meters long

Type of Dinosaur : Sauropod

Type Species : Y.‭ ‬jingyiensis‭ (‬type‭)

Found in : China,‭ ‬Yunnan Province‭ ‬-‭ ‬Zhanghe Formation

When it Lived : Mid Jurassic, 180-159 million years ago

Yuanmousaurus (“Yuanmou Lizard”) was an sauropod dinosaur that lived in during the Middle Jurassic period of China. It was discovered through incomplete remains that were discovered in 2000 in the Zhanghe Formation in Yuanmou County in Yunnan Province. Yuanmousaurus was a rather big sauropod that could be as long as 17 meters (56 feet) long. This was an important part of the Sauropoda however its precise location in the system is not clear. Recent research has placed Yuanmousaurus in the family Mamenchisauridae. The sole and only species was Yuanmousaurus Jiangyiensis.

Yuanmousaurus was thought to be around 17 meters (56 feet) to be the length of its body. The skull is not present, while the neck can be identified only through a piece of a posterior cervical vertebra. This fragment shows cervical vertebrae that are elongated like those found in mamenchisaurid sauropods but different from the neck vertebrae that are much smaller of the basal Shunosaurus. From the trunk and the tail nine sacral, 3 dorsal, and seven caudal vertebrae were discovered. The pelvic and shoulder girdles were missing, with the only exception of one ilium the limbs are more well-known and include the humerus, the ulna and radius, the Tibia, thigh bone fibula, astragalus, astragalus, and claws that is found in the foot of the hind. The forelimbs were significantly longer than the shortnecked Shunosaurus however they were smaller than those in Omeisaurus The length ratio between the humerus and Thigh bones was 0.72 in Yuanmousaurus and 0.56 within Shunosaurus as well as 0.80 at Omeisaurus.

The sole Skeletal remains (YMV 601) was discovered in May 2000, in the village of Jiangyi located in Yuanmou County, Yunnan Province. The excavation was conducted by palaeontologists working for the Yunnan Provincial Institute of Cultural Relics and Archaeology and which is part of the Yuanmou Museum and the Chuxiong Museum. The fossils are now included in the Yuanmou Museum collection. They were identified as Yuanmousaurus Jiangyiensis from Lu Junchang and colleagues in the year 2006. The name refers to Yuanmou County and the village Jiangyi in which fossils were discovered.

Source: Wikipedia