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bookAt: Organ. Remains, London, printed by C. Whittingham, ... and published by J. Robson By: Parkinson J.
journalAt: Precambrian research, 43, 4 By: Allison C. W., Awramik S. M.
journalAt: Precambrian research, 236 By: Tang Q., Pang K., Xiao S.-H., Yuan X.-L., Ou Z., Wan B.
bookAt: Paleontol. Dokembr. Rann. Kembr., Leningrad, Izdatel'stvo "Nauka", Leningradskoe otdelenie By: Bessonova V. Ya., Gnilovskaja M. B., Piskun L. V.
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journalAt: Zhurnal obshchei biologii, 43, 3 By: Meyen S. V.
bookAt: Shromata k'rebuli Akad. Dzejanelidzis, Tbilisi, Izdateľstvo Akademii Nauk Gruzinskoj SSR [Sak. SSR Metsn. Ak'ad. gam-ba] By: Usnadze M. D.
journalAt: Review of Palaeobotany and Palynology, 37, 3-4 By: Gensel P. G.
journalAt: Palaeobotanist, 1990, 39, 3 By: Singh A.