Genus: Huanghetitan YOU, LI, ZHOU & JI, 2006
Etymology: Chinese, Huanghe, "Yellow River," which flows along the Lanzhou Basin where the fossiles were discovered and Greek, Titan, in referene to Greek mythological giants, symboilc of great size.
Species: liujiaxiaensis YOU, LI, ZHOU & JI, 2006
Etymology: Chinese, Liujiaxia, "Liujia Gorge," which is part of the Yellow River in Lanzhou Basin, where the Liujiaxia National Dinosaur Geopark is located nearby.
Locality: Quarry 2, eastern part of the Lanzhou Basin, Gansu Province, China.
Horizon: Hekou Group.
Age: Early Cretaceous.
Material: Nearly complete sacrum, 1 proximal caudal, 1 middle caudal vertebrae, fragmentary cervical ribs, 1 chevron missing its distal end, left scapula and left coracoid.
Species: ruyangensis LU, XU, ZHANG, & HU, 2007
Etymology: In reference to the Chinese administrative unit Ruyang County of Henan Provine, which the holotype locality belongs to.
Holotype: 41 HIII-0001
Locality: Liufugou Village of Liudian, Ruyang County, Henan Province, China.
Horizon: Mangchuan Formation.
Age: Late Cretaceous.
Material: 6 sacral, 19 caudal vertebrae, hemal archs, dorsal ribs and incompelte ischium.