At: Bulletin of the British Museum (Natural History), Series, Geology, 2, 2 By: Calder M. G.
journalAt: Memoirs and Proceedings of the Manchester Literary and Philosophical Society, 80 By: Johnson T.
journalAt: Botanical Review By: Jiménez-Mejías P., Martinetto E., Momohara A., Popova S. S., Smith S. Y., Roalson E. H.
journalAt: Scientific Temper, 12, 1-2 By: Nama S. L., Goyal M. K., Rathore G., Ram C.
journalAt: Journal of Geosciences (Osaka), 19, Art. 2 By: Nirei H.
journalAt: Journal of the Linnean Society, Series, Botany, 48, 320 By: Bandulska H.
journalAt: Mathematikai és természettudományi értesítő, 19, 4 By: Staub M.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 302, 1-6 By: Dolezych M., LePage B. A., Williams C. J.
journalAt: Acta Palaeobotanica, 25, 1-2 By: Łańcucka-Środoniowa M.
bookAt: Cat. Org. Remains Perm. Rocks, Newcastle-upon-Tyne, Printed for and published by the Author, and sold by all booksellers By: King W.