Mosquoceras tschernyschewi (Tzwetaev, 1888) Click on image to magnify Go-Back Mosquoceras tschernyschewi (Tzwetaev, 1888) - cephalopod - Pennsylvanian - Gzhelian Stage
Mosquoceras tschernyschewi (Tzwetaev, 1888) Click on image to magnify Go-Back
Mosquoceras tschernyschewi (Tzwetaev, 1888) - cephalopod - Pennsylvanian - Gzhelian Stage