At: Bulletin of the British Museum (Natural History), Series, Geology By: Harris T. M.
bookAt: Thesaurus Dev.-Carbonif., London, J. Van Voorst By: Bigsby J. J.
bookAt: Thesaurus Silur., London, J. Van Voorst By: Bigsby J. J.
journalAt: Paleontologicheskii Zhurnal, 1971, 2 By: Doludenko M. P.
journalAt: Report of the British Association for the Advancement of Science, 51 (1881) By: Baily W. H.
journalAt: Historical biology, 27, 3-4 By: Prestianni C., Gerrienne P.
journalAt: Mémoires / Institut Royal des Sciences Naturelles de Belgique, 125 By: Alvin K. L.
journalAt: Science reports of the Kanazawa University, 2, 1 By: Matsuo H.
journalAt: Phytotaxa, 409, 1 By: Wong W. O., Dilcher D. L., Uemura K.
journalAt: Journal of Paleontology, 29, 1 By: Fry W. L., Banks H. P.