Authors Year Title
Taraz 1969 Permo-Triassic Section in Central Iran.
Bulletin of the American Association of Petroleum Geoligusts, 53 (3): 688-693, 2 figs., Tehran.
Waterhouse & Gupta 1985 Cyclolobus and Otoceras from Spiti, Northwest India.
Contributions to Himalayan Geology, 3, Geology of Western Himalayas, 219-224, 1 text-fig., 1 pl.