|
Andrianov |
1985 |
Permskie i nekotorye kamennougol'nye ammonoidei Severo-Vostoka Azii.
Novosibirsk Izdatel'stvo Nauka, Sibirskoe Otdelenie, 1985: 1-180, fig.1-54, pl.A,B,1-21; Novosibirsk.
|
|
|
Nassichuk |
1995 |
Permian Ammonoids in the Arctic Regions of the World.
In: Scholle,P.A. et al.,eds., The Permian of Northern Pangea 1: 210-235, 10 fig., Berlin (Springer).
|