At: Palaeobotanist, 1968, 17, 3 By: Awasthi N.
journalAt: Phytotaxa, 298, 2 By: Chen Y.-F., Wong W. O., Hu Q., Liufu Y.-Q., Xie Z.-M.
journalAt: American Geologist, 11, 6 By: Herzer H.
journalAt: American Geologist, 12, 5 By: Herzer H.
journalAt: International Journal of Plant Sciences, 182, 9 By: Poinar G. O., Soreng R. J.
journalAt: International Journal of Plant Sciences, 1995, 156, 6 By: Hao S.-G., Gensel P. G.
journalAt: Paleontological Journal, 43, 10 By: Karasev E. V.
journalAt: IAWA Journal, 38, 4 By: Pérez-Lara D. K., Castañeda-Posadas C., Estrada-Ruiz E.
journalAt: Botanical Gazette, 148, 2 By: Manchester S. R., Crane P. R.
journalAt: Geološki vjesnik, 1967, 21 By: Sokač B.