Skeletal mount of Probactrosaurus gobiensis, copyright Greg Goebel.

Belongs within: Iguanodontia.
Contains: Hadrosauridae.

The name Hadrosauroidea has been used for a clade uniting the Hadrosauridae and Ouranosaurus; it is here used for the smallest clade uniting these two taxa as found in the phylogenetic analysis by Norman (2004). Supporting characters for this clade were not explicitly listed.

    |  i. s.: Jinzhousaurus Wang & Xu 2001 N04
    |           `--J. yangi Wang & Xu 2001 N04
    |--Ouranosaurus Taquet 1976 N04
    |    `--O. nigeriensis Taquet 1976 N04
    `--+--+--Eolambia Kirkland 1998 N04
       |  |    `--E. caroljonesa Kirkland 1998 N04
       |  `--Altirhinus Norman 1998 N04
       |       `--A. kurzanovi Norman 1998 N04 [incl. Iguanodon orientalis D07]
       `--+--Protohadros Head 1998 N04
          |    `--P. byrdi Head 1998 N04
          `--+--+--Hadrosauridae N04
             |  `--Nanyangosaurus Xu, Zhao et al. 2000 XZ00
             |       `--*N. zhugeii Xu, Zhao et al. 2000 XZ00
             `--Probactrosaurus Rozhdestvensky 1966 N04
                  |--P. alashanicus Rozhdestvensky 1966 N04
                  |--P. gobiensis Rozhdestvensky 1966 N04
                  `--P. mazongshanensis Lü 1997 N04

*Type species of generic name indicated


[D07] Dixon, D. 2007. The Complete Illustrated Encyclopedia of Dinosaurs & Prehistoric Creatures. Hermes House: London.

[N04] Norman, D. B. 2004. Basal Iguanodontia. In: Weishampel, D. B., P. Dodson & H. Osmólska (eds) The Dinosauria 2nd ed. pp. 413–437. University of California Press: Berkeley.

[XZ00] Xu X., Zhao X.-J., Lü J.-C., Huang W.-B., Li Z.-Y. & Dong Z.-M. 2000. A new iguanodontian from Sangping Formation of Neixiang, Henan and its stratigraphical implication. Vertebrata PalAsiatica 38 (3): 176–191.

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