ARKHANGELSKAYA A.D. & TURNAU E. (2003).- New dispersed seed-megaspores from the mid-Givetian of European Russia.- Review of Paleobotany and Palynology, Amsterdam, vol. 127, no 1, p. 45-58.
ARNOLD C.A. (1939). - Observations on fossil plants from the Devonian of Eastern North America. IV. Plants remains from the Cattskill Delta deposits of Northern Pennsylvania and Southern New-York.- Contribution Museum Paleontology, University of Michigan, vol. V, p. 271-314.
CLÉMENT G., AHLBERG Per E., BLIECK A., BLOM H., CLACK J.A., POTY E., THOREZ J. & JANVIER P. (2004).- Palaeogeography: Devonian tetrapod from western Europe.- Nature, London, vol. 427, p. 412-413.
CRÉPIN F. (1875).- Description de quelques plantes fossiles de l'étage des Psammites du Condroz (Dévonien supérieur).- Bulletin de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique, Bruxelles, 2ème série, T. XXXVIII, p. 356-366.
DAWSON J.W. (1871).- The fossil plants of the Devonian and Upper Silurian formations of Canada.- Geological Survey of Canada, Montréal, 923 p.
EDWARDS D., FAIRON-DEMARET M. & BERRY C.M. (2000).- Plant megafossils in Devonian stratigraphy: a progress report. In: BULTYNCK P. (ed.) Subcommission on Devonian Stratigraphy - Fossil groups important for boundary definition.- Courier Forschungsinstitut Senckenberg, Frankfurt, no 220, p. 25-37.
FAIRON-DEMARET M. (1996).- The plant remains from the Late Famennian of Belgium: a review.- The Palaeobotanist, Lucknow, vol. 45, p. 201-208.
FAIRON-DEMARET M., LEPONCE I. & STREEL M. (2001).- Archaeopteris from the Upper Famennian of Belgium: heterospory, nomenclature, and palaeobiogeography.-Review of Paleobotany and Palynology, Amsterdam, vol. 115, p. 79-97.
FAIRON-DEMARET M. & SCHECKLER S.E. (1987).- Typification and redescription of Moresnetia zalesskyi STOCKMANS, 1948, an early seed plant from the Upper Famennian of Belgium.- Bulletin de l'Institut Royal des Sciences naturelles de Belgique, Bruxelles, (Sciences de la Terre), vol. 57, p. 183-199.
GERRIENNE P., MEYER-BERTHAUD B., FAIRON-DEMARET M., STREEL M. & STEEMANS P. (2004).- Runcaria, a Middle Devonian Seed Plant Precursor.- Science, Washington, vol. 306, p. 856-858.
GÖPPERT H.R. (1860).- Über die fossile Flora der silurischen, der devonischen und unteren Kohlenformation oder des sogenannten Uebergangsgebirges.- Verhandlung Kaiserlischen Leopoldina Caroliana Akademie Naturforschung, Jena, Bd. XXVII, p. 425-606.
HILTON J. (1999).- A Late Devonian plant assemblage from the Avon Gorge near Bristol: taxonomic, phylogenetic and stratigraphic implications.- Botanical Journal of the Linnean Society, London, vol. 129, p. 1-52.
HOCK M.G. (1879).- Communication du 16 septembre 1879.- Annales de la Société géologique de Belgique, Liège, vol. VI, p. XCVIII-XCIX.
JURINA A.L. (1988).- The Middle and Late Devonian floras of northern Eurasia.- Transactions of the Palaeontological Institute, Moskva, vol. 227, 176 p. (in Russian).
MARSHALL J.E. & HEMSLEY A.R. (2003).- A Mid Devonian seed-megaspore from East Greenland an the origin of the seed plants.- Palaeontology, London, vol. 46, part 4, p. 647-670.
PRESTIANNI C. (2005).- Condrusia: a novel Famennian pre-ovulate structure.- Abstract No. P1477, XVII International Botanical Congress, Vienna, 17th-23rd July 2005, p. 471.
PRESTIANNI C., STREEL M., GERRIENNE P. & HILTON J. (2006a).- New observations on the late Devonian Plant assemblage from Strud, Southern Belgium.- A life of ferns and gymnosperms, Montpellier, 6th-8th April 2006, p. 19.
PRESTIANNI C., VILLE DE GOYET F. de, BREUER P., STEEMANS P. & GERRIENNE P. (2006b).- Ovulate structure early origin and diversification: did something happen during the Givetian?- 7th Palaeobotany-Palynology conference, Praha, 6 th-11th September 2006, p. 109.
STOCKMANS F. (1948).- Végétaux du Dévonien supérieur de la Belgique.- Mémoires du Musée Royal d'Histoire Naturelle de Belgique, Bruxelles, vol. 110, 84 p.
THOREZ J. & DREESEN R. (1986).- A Model of a regressive depositional system around the old red continent as exemplified by a field trip in the upper Famennian "Psammites du Condroz" in Belgium.- Annales de la Société géologique de Belgique, Liège, vol. 109, no 1, p. 285-323.
THOREZ J., DREESEN R. & STREEL M. (2006).- Famennian. In: DEJONGHE L. (ed.), Current status of chronostratigraphic units named from Belgium and adjacent areas.- Geologica Belgica, Bruxelles, vol. 9, no 1-2, p. 27-45.
VILLE de GOYET F. de, BREUER P., GERRIENNE P., PRESTIANNI C., STREEL M. & STEEMANS P. (2007).- Middle Devonian (Givetian) megaspores from Belgium (Ronquières) and Libya (A1-69 borehole).- Carnets de Géologie - Notebooks on Geology, Brest, Memoir 2007/01, Abstract 11 (CG2007_M01/11), p. 68-73.