• pA LYN O Gy~ALAEO BOTANyR EVI E WOFAN D ELSEVIER Review ~ ~ laeobom~ ~ d P ~ o b ~ 93 (1996) 341

Contents Volume 93, 1996

Special I s sue Mauriee S~eel (edited by M. Fairon-Demaret)

Dedication M. Fairon-Demaret , M. Vanguestaine ....................................................................................................................................... 1

The scientific work o f Maufice Stred B. Owens .................................................................................................................................................................................... 3

Some confiderations on acfitarch classification T. Servais ................................................................................................................................................................................... 9

Systematic revision o f the acritarch Ferromia pellita and its bearing on Lower Ordov idan stratigraphy F. Mart in ................................................................................................................................................................................... 23

Ordov idan and Silurian cryptospores and miospores ~ o m southea~ern Turkey P. Steeman~ A. ~ Htf iss t , N. Bozdogan ................................................................................................................................... 35

Demersatheca Li et Edwards, gen. nog, a new genus o f early land p l a n s f rom the Lower Devonian, Yunnan Province, China C.-S. Li, D. Edwards .................................................................................................................................................................. 77

Lower Devonian plant remains ~ o m Marchin ( n o , b e r n margin of Dinant Synclinorium, Bdgium). IV. Odonax boreal~ gen. et sp. nov. P. Gerrienne ............................................................................................................................................................................... 89

Miospore ~ra t igraphy of Middle Devonian depofi~ ~ o m western Pomerania E. Turnau ................................................................................................................................................................................... 107

Anapaul~ moodyi gen. et sp. nov. : a p robab~ iridoptefidalean compresfion fossil ~ o m the Devonian of western Venezuda C.M. Berry, D. Edwards ............................................................................................................................................................ 127

Devonian spore u l~a~ructure : Rhabdosporites T.N. Taylo~ S.E. Scheck~r ........................................................................................................................................................ 147

Rhabdospo~tes langii, Geminospora lemurata and Contagisporites opt~us: an origin for heterospory within the Progynmosperms LE.A. Marshall .......................................................................................................................................................................... 159

Bios~at igraphy of the Upper Devonian Escuminac Formation, ea~ern Qutbec, Canada: a comparative study based on miospores and fishes R. Cloufier, S. Lobofiak, A.-M. C a n d i l ~ A. Bl~ck ................................................................................................................. 191

Dor~notheca s~eelii Fairon-Demaret , geg et sp. nog, a new early seed plant f rom the upper Famennian of Belgium M. Fairon-Demaret .................................................................................................................................................................... 217

A new Late Devonian acupulate preovule f rom the Taft Gorg~ South Wales J. Hilton, D. Edwards ................................................................................................................................................................ 235

Reconstruct ion of the b o n d of Laceya hibernica, a Lyginopterid pteridosperm from the uppermost Devonian of Ireland ~ D . Klavins, L.C. Mat ten ......................................................................................................................................................... 253

Taxonomy and systematic study of some Tournaisian (Ha~af ian) spores ~ o m Bdg ium K.T. Higgs ................................................................................................................................................................................. 269

The early seed plant Tr~tich~ ~ipos (UngeO com& nog ~ o m the Lower Carboniferous o f Saalfeld, Thuringia L G a l t ~ B. Meyer-Be~haud .................................................................................................................................................... 299

New data on the formation of Carboniferous coal balls A.C. Scott, D.P. MaRey, R. Howard ......................................................................................................................................... 317

Abnormal spores and po~ible interspedfic hybf id~at ion as a factor in the evolution of Early Devonian land p lan~ J.B. Richardson ..................................................................................................................................................................... 333