Species: tianyiensis GAO & SHUBIN, 2003
Etymology: Tianyi, ancient country name for Ningcheng.

Holotype: CAGS-1G-02051

Locality: Daohugou, Ninghceng County, Inner Mongolia, China.

Horizon: Jiulongshan Formation.

Biostratigraphy:

Age: Bathonian Stage, upper middle Dogger Epoch, Middle Jurassic.

Material: Nealry complete specimen.

Referred material:

PKUP V0210-0212: Nearly 200 specimens, larval or subadult, some with soft tissue preserved.

DFONG, HUANG, & WANG, 2011

IVPP V18084-V18092: 9 nearly complete specimens.

Note With conchostracans or insects as stomach contents.

Note: With soft tissue impressions (e.g. eyes, gills, skin, tail fins).