Genus: Largocephalosaurus CHENG, CHEN, ZENG & CAI, 2012
Etymology: Latin, largus, "large", Latin, cephalus, "head", and Greek, sauros, "lizard".
Species: polycarpon CHENG, CHEN, ZENG & CAI, 2012
Etymology:
Latin, poly, "many", and Latin, carpon, "ossified carpals".
Holotype: WIGM SPC V 1009
Locality: Luoping County, Yunnan Province, southwestern China.
Horizon: Upper Member, Guanling Formation.
Biostratigraphy:
Age: Middle Anisian Stage, Lower Mid Triassic Epoch, Lower Middle Triassic.
Material: Skull and fragmentary skeleton.
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Species: qianensis LI, JIANG, CHENG, WU & RIEPPEL, 2014
Etymology: Specific name referes to the simplified name "Qian" for Guizhou Province, China, where the specimen was collected.
Holotype: IVPP V 15638
Locality: Xinmin District, Panxian County, southwest-most Guizhou Province, southwestern China.
Horizon: Member II, Guanling Formation.
Biostratigraphy:
Age: Middle Anisian Stage, Lower Mid Triassic Epoch, Lower Middle Triassic.
Material: A nearly comlpete skeleton in ventral view, with posterior-most section of tail missing.
Referred material:
GMPKU-P-1532-A: A skull with cervical vertebra.
GMPKU-P-1532-B: An incomplete postcranial skeleton, wiht the posterior portion of mandible but missing most of the tail.