At: Proceedings of the National Academy of Sciences India, Series, Section B, Biological sciences, 14, 1-2 By: Mehta K. R.
journalAt: Precambrian research, 74, 1-2 By: Kumar S., Srivastava P.
journalAt: Journal of Paleontology, 56, 3 By: Knoll A. H.
journalAt: Precambrian research, 11, 2 By: Horodyski R. J., Donaldson J. A.
journalAt: Micropaleontology, 1, 1 By: Brönnimann P.
journalAt: Palaeontologia Cathayana, 2 By: Yin L.-M.
journalAt: Revista brasileira de paleontologia, 13, 2 By: Franco M. J., Brea M.
journalAt: Compte rendu sommaire de la Société Géologique de France, 1954, 11-12 By: Deunff J.
journalAt: Science, 147, 3658 By: Barghoorn E. S., Tyler S. A.
journalAt: Journal of Paleontology, 43, 1 By: Schopf J. W., Barghoorn E. S.