Euhelopus

Euhelopus is a genus of titanosauriform sauropod dinosaur that lived between 129 and 113 million years ago during the Early Cretaceous[1] in what is now Shandong Province in China. It was a large quadrupedal herbivore, it weighed approximately 15-20 tons and attained an adult length of 15 m (49 ft)[2] Unlike most other sauropods, Euhelopus had longer forelegs than hind legs. This discovery was paleontologically significant because it represented the first dinosaur described from China: seen in 1913, rediscovered in 1922, and excavated in 1923.[3] Unlike most sauropod specimens, it has a relatively complete skull.

Discovery and naming
It was originally named Helopus, meaning "Marsh Foot" by Carl Wiman in 1929, but this name already belonged to a bird. It was renamed Euhelopus (Good marsh-foot) in 1956 by Romer. There is a plant genus (a grass) with the same generic name. However, a genus in one biological kingdom may have a name that is used as a genus name in another kingdom, so Euhelopus was allowed.

Description
Specimens PMU 24705 (formerly PMU R233) and PMU 24706 (formerly PMU R234) form the descriptive basis for the type species, Euhelopus zdanskyi.[4]

Specimen PMU 24706 comprises nine articulated dorsal vertebrae and the sacrum, two dorsal ribs, a nearly complete pelvis, and a right hindlimb lacking metatarsal V and several pedal phalanges.[2]

Specimen PMU 24705 comprises these bones: the rostral part of the left nasal; a partial right jugal; the tapered jugal process of the postorbital, partially excavated; the dorsal process of the right quadratojugla; and the fragmented left pterygoid. Another fragment might be the right splenial, but it is too fragile to be removed from its matrix.