At: Proceedings of the National Academy of Sciences India, Series, Section B, Biological sciences, 14, 1-2 By: Srivastava B. P.
journalAt: Proceedings of the National Academy of Sciences India, Series, Section B, Biological sciences, 1945, 15, 6 By: Srivastava B. P.
journalAt: Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Historische Geologie, 42 By: Selmeier A.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 106, 4-6 By: Ramanujam C. G. K.
journalAt: Journal of Paleontology, 1, 4 By: Hanna G. D.
bookAt: Siluria, London, J. Murray By: Murchison R. I.
bookAt: Siluria, London, J. Murray, 4, [Atlas] By: Murchison R. I.
bookAt: Siluria, London, J. Murray, 4, [Text] By: Murchison R. I.
journalAt: Palaeontology, 9, 1 By: Johnson H. M.
journalAt: Paleontologicheskii Sbornik, 21 By: Istchenko A. A.