Genus: Changchunsaurus ZAN, CHEN, JIN & LI, 2005
Etymology: In reference to 'Changchun', the capital of Jilin Province, China, where the specimen was found, and Greek, sauros, "lizard."
Species: parvus ZAN, CHEN, JIN & LI, 2005
Etymology: Greek, parvus, "petite," referes to the small size of the dinosaur.
Holotype: JLUM L0403-j -Zn2
Locality: Shanqian, Liufangzi, Gongzhulin city, Jilin Province, China.
Horizon: Quantou Formation.
Age: Early Cretaceous.
Material: Complete skull and skeleton.
JLUM L0204-Y-23: A premaxilla that the left posterolateral process and the end of the dorsal process were broken.
JLUM L0204-Y-24: An almost complete right dentary.
CHEN, LeBLANC, JIN, HUANG & REISZ, 2018
Ya-C16071lel: Maxillary fragment.
Ya-C16072lel, Ya-C16073lel: Dentary fragments.
Ya-C16071la, Ya-C16071ld: Left dentaries.
Ya-C16071lb, Ya-C16071lc: Right dentaries.