At: Journal of Paleontology, 44, 6 By: Hope R. C., Patterson O. F., III
journalAt: Paleontologicheskii Zhurnal, 1980, 2 By: Meyen S. V., Gomankov А. V.
journalAt: Paleontologicheskii Zhurnal, 1995, 2 By: Akhmetiev M. A., Vikulin S. V.
journalAt: Taxon, 31, 3 By: Watson J., Hill C. R.
journalAt: Bioinfolet, 6, 1 By: Narkhede S. D., Bhowal M.
journalAt: Botanical Gazette, 95, 3 By: Graham R.
journalAt: Botanical Gazette, 97, 1 By: Graham R.
journalAt: Micropaleontology, 11, 4 By: Upshaw C. F., Creath W. B.
journalAt: Bulletin / Division of the State Geological Survey, State of Illinois, 74 By: Kosanke R. M.
journalAt: Journal of Paleontology, 37, 4 By: Peck R. E., Eyer J. A.