At: Comptes rendus hebdomadaires des séances de l’Académie des Sciences, Paris, 80, 15 By: Brongniart A. T.
journalAt: Review of Palaeobotany and Palynology, 10, 3 By: Givulescu R.
journalAt: Bulletin de la Société Géologique de France, Series 7 [1965], 7, 2 By: Grambast L., Paul P.
journalAt: Bulletins de l’Académie Royale des Sciences, des Lettres et des Beaux Arts de Belgique, Class, Classe des sciences, Ser. 5, 10, 5-9 By: Leclercq S.
journalAt: Bulletin de la Société Géologique de France, Series 7(1957), 7, 8–9 By: Dangeard L., Doré F.
journalAt: Pollen et Spores, 15, 3-4 By: Sivak J.
journalAt: Transactions of the Royal Society of Edinburgh, 70, 1–3 By: Long A. G.
journalAt: Geološki anali Balkanskoga poluostrva, 71 By: Radoičić R., Schlagintweit F.
journalAt: Transactions of the Royal Society of Edinburgh, 78, 2 By: Long A. G.
journalAt: Contributions from the Museum of Paleontology, University of Michigan, 5, 7 By: Arnold C. A.