|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was considered a nomen dubium by Weishampel and Horner (1990).
It was assigned to Ornithopoda by Huene (1958); to Camptosauridae by Huene (1959); to Sauropoda by Tatarinov (1964); to Iguanodontidae by Young (1944), Romer (1956), Kuhn (1964), Thulborn (1974), Dong et al. (1983), Zhao (1983) and He (1984); to Sauropoda by Romer (1966) and Dong (1992); and to Sauropoda by Upchurch (1995) and McPhee et al. (2016).
|Year||Name and author|
|1944||Sanpasaurus Young p. 190|
|1956||Sanpasaurus Romer p. 629|
|1958||Sanpasaurus Huene p. 206|
|1959||Sanpasaurus Huene p. 121|
|1964||Sanpasaurus Kuhn p. 12|
|1964||Sanpasaurus Tatarinov p. 552|
|1966||Sanpasaurus Romer p. 370|
|1974||Sanpasaurus Thulborn p. 172|
|1983||Sanpasaurus Dong et al.|
|1983||Sanpasaurus Zhao p. 302|
|1984||Sanpasaurus He p. 71|
|1992||Sanpasaurus Dong pp. 51-53|
|1995||Sanpasaurus Upchurch p. 252|
|2016||Sanpasaurus McPhee et al.|
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.