162 



J.B. RICHARDSON, R.M. RODRIGUEZ AND S.J.E. SUTHERLAND 



Gebirge, N-Spanien). Coliinger Arbehen zur Geologie und Paldnntologie, 33: 209- 



224, 13 pis. 

 Seward, A. C. 1931. Plant life through the ages. 1st edition. 601 pp. Cambridge 



University Press. 

 Shepeleva, E. D. 1963. Spores from the Lower Devonian beds of the Podolian Dneister 



River area. Regional stratigraphy SSSR: 98-101 . Moscow. [In Russian]. 

 Sommer, F. W. & van Boekel, N. W. 1964. Quitinozoarios do Devoniano de Goias. 



Anais Da Academia Brasileria De Ciencias. 36: 423^31. 2 pis. 

 Steemans, P. 1 989. Etude palynostratigraphique du Devonien inferieur dans I'ouest de 



r Europe. Memoires pour sen'ir a V Explication des Cartes Geologiques et Minieres 



de la Belgiqites, 27: 453 pp., 47 pis. 

 Streel, M. 1964. Une association de spores du Givetien inferieur de la Vendre, i Goe 



(Belgique). Annales Societe Geologique de Belgique. 87: 1-30, 2 pis. 

 Su^rez de Centi, C. 1988. Estraligrafia sedimeiitologia y paleogeografia de la 



Formacion Furada/San Pedro. Zona Cantdhrica (NW Espaiia). Tesis Doctoral, 



Oviedo. 530 pp. 

 Sutherland, S. J. E. 1 994. Ludlow chitinozoans from the type area and adjacent regions 



(Part 1 ). Monograph of the Palaeonlographical Society. London: 1-104, 18 pis. 

 Taugourdeau, P. & de Jekhowsky, B. 1 960. Repartition et description des Chitinozoaires 



Siluro-Devoniens de quelques sondages de la C.R.E.P.S., de la C.F.P.A. et de la S.N. 



Repal au Sahara. Revue de I'lnstitut Frangais du Petrole, Paris, 15:11 99- 1 260, 1 3 pis. 

 Thompson, P. W. & Pflug, H. 1953. Pollen und Sporen der mittel-europaischen 



Tertiars. Palaeontographica, B 94: 1-138, pis 1-15. 

 Tucker, R. D., Bradley, D. C, Ver Straeten, C. A., Harris, A.G., Ebert, J. R. & 



McCutcheon, S.R. 1998. New U-Pb zircon ages and the division of Devonian time. 



Earth and Planetary Science Letters. 158: 175-186. 

 TUrnau, E. 1 986. Lower to Middle Devonian spores from the vicinity of Pionki (Central 



Poland). Review of Palaeobotany Palynology. 46: 31 1-354, 8 pis. 

 Van den Bosch, W. J. 1969. Geology of the Luna-Sil Region, Cantabrian Mountains 



(NW Spain). Leidse Geologische Mededelingen. 44: 137-225. 

 Verniers, J., Nestor, V., Paris, F., Duflia, P., Sutherland, S. & Van Grootel, G. 1 995 



A global Chitinozoa biozonation for the Silurian. Geological Magazine, 132: 651- 



666, figs 5, 6. 

 Wellman. C. 1993. A land plant microfossil assemblage of Mid Silurian age from the 



Stonehaven Group. Scotland. Journal of Micropalaeontology, 12: 47-66. 5 pis. 

 Witzke, B. J., & Heckel, P. H. 1988. Paleoclimatic indicators and inferred Devonian 



palaeolatitudes of Euramerica. In, McMillan, N. J., Embry, A. F. & Glass, D. J. 



(editors), International Symposium on the Devonian System. Calgary, 1: 49-63. 



Canadian Society of Petroleum Geologists. Calgary, Canada. 

 Wrona, R. 1980. Upper Silurian-Lower Devonian Chitinozoa from the subsurface of 



southeastern Poland. Palaeontologia Polonica. 41: 103-165. pis 24-37. 

 Ziegler, P. A. 1988. Laurussia -The Old Red Continent, In, McMillan, N. J., Embry, A. 



F. & Glass, D. J. (editors). International Symposium on the Devonian System Calgary, 



1: 15-48. Canadian Society of Petroleum Geologists, Calgary, Canada. 



