Shantungosaurus ‭(‬Shantung lizard‭)‬

Short Info

Shantungosaurus ‭(‬Shantung lizard‭)‬

Phonetic : Shan-tung-o-sore-us

Named By : Hu‭ ‬-‭ ‬1973

Diet : Herbivore

Size : Estimated 15 meters long

Type of Dinosaur : Euornithopod

Type Species : S.‭ ‬giganteus‭ (‬type‭)

Found in : China‭ ‬-‭ ‬Shandong Peninsula‭ ‬-‭ ‬Wangshi Formation

When it Lived : Late Cretaceous, 78-74 million years ago

Shantungosaurus (meaning “Shandong Lizard”) is a genus belonging to the extremely large saurolophine hadrosaurid dinosaurs located within the Late Cretaceous Wangshi Group of the Shandong Peninsula in China, with a single species Shantungosaurus giganteus. The stratigraphic range of Shantungosaurus spans from the very top of the Xingezhuang Formation to the middle of the Hongtuya Formation, middle to late Campanian in the age of. Shantungosaurus is by far the biggest hadrosauroid taxon on the planet The longest measurement of its femur measures approximately 1.7 metres (5.6 feet) and the longest size of the humerus measures approximately 0.97 meters (3.2 feet).

Laika ac Dino Kingdom 2012 (7882291466)Laika ac from USA, CC BY-SA 2.0, via Wikimedia Commons

The first time it was discovered was in 1973. Shantungosaurus was first identified in 1973. It is recognized from more than five skeletons that are incomplete. Chinese scientist Xing Xu and his colleagues indicate that Shantungosaurus is very similar to and shares many unique characters with Edmontosaurus, forming an Asian node of an Edmontosaurus-Shantungosaurus clade, based on the new materials recovered in Shandong. The remains of various individuals such as the skull bone, bones of the limbs and vertebrae, were discovered within Shandong, China. The bones were classified as belonging to the Zhuchengosaurus species and genus maximus in the year 2007. But further research revealed that the supposed distinct characteristics of Zhuchengosaurus are simply the result of different development levels.

Recent phylogenetic analyses based on maximum parsimony for Hadrosauroidea by Xing and colleagues have revealed an established sister group relation that is shared by Edmontosaurus as well as Shantungosaurus. Shantungosaurus is the only hadrosaurid found in the Zhucheng region that is believed to be to be valid. Zhuchengosaurus and Huaxiaosaurus both of which originate from the same area, are identified by the analysis as minor synonyms for Shantungosaurus. Any morphological contradictions that can be clearly identified between the three taxa can be explained by intraspecific variation (ontogenetic as well as polymorphic variations) as well as post-depositional distortion.

Source: Wikipedia