Acta Paleontologica Sinica, 20 (6): 485-500, fig.1-12, pl.1-3; Beijing.
| Authors | Year | Title | |
|---|---|---|---|
|
|
Liang | 1981 |
Early Permian cephalopods from Northwestern Gansu and Western Nei Monggol.
Acta Paleontologica Sinica, 20 (6): 485-500, fig.1-12, pl.1-3; Beijing.
|