Daxiatitan

Daxiatitan is a genus of titanosaur dinosaur from the Lower Cretaceous of Lanzhou Basin, Gansu Province, northwestern China. It is known from fossils including several neck vertebrae, a shoulder blade, and a thigh bone.[1]

It was a very large dinosaur, estimated at 23–30 meters (75–98 feet).[1] [2]  Like both Euhelopus and Huanghetitan, it had an enormously long neck.[3]