Genus: Monolophosaurus ZHAO & CURRIE, 1994
Etymology: Greek, monos, "single," Greek, lophos, "crested" and Greek, sauros, "lizard": single crested lizard.

Species: jiangi ZHAO & CURRIE, 1994
Etymology: Jiangjunmiao (translated as General Jiang’s Temple) is the site of an abandoned desert inn in the Gurbantunggut (previous transliteration is Kurban Tangut) Desert of the Junnger Basin of Xinjiang.

Holotype: IVPP 84019

Locality: 34 km northeast of Jiangjunmiao (44’30”N, 90’0”E) in the Jiangjunmiao Depression within the Junggar Basin, Xinjiang Uygur Zizhiqu (Sinkang) Province, China.

Horizon: Wucaiwan Formation, Upper Shuixigou Group.

Biostratigraphy:

Age: Dogger Epoch, Middle Jurassic.

Material: Complete skull and partial skeleton.
Note: There is a series of 9 poorly defined, elongate and raised blister-like lesions on the left dentary, the right dentary has smilar distribution of marks,with 3 marks laterally (two of these along the ventrolateral margin) adn 3 marks ventromedially, all located central or posterior. The marks on the maxillae are all located on the lateral surface of the main body, vental to the maxillary fenestrae and naris, possibly due to face biting (TANKE & CURRIE, (1998) 2000, BROWN, CURRIE & THERRIEN, 2021), also dorsal neural spines 10 and 11 show evidence of an injury and were broken.