Philippe Gerrienne

TL;DR: All the fossil evidence supports the Antithetic Theory and indicates that the gametophyte generation/sporophytic generation size and complexity ratios show a gradual decrease along the land plant phylogenetic tree.

TL;DR: In this paper, hundreds of standing stumps have been discovered within a lignitic horizon in the middle of the Tienen Formation near Hoegaarden in northeast Belgium, and the anatomical features of the fossil stumps, as those of the numerous silicified secondary xylem remains collected since the last century from this area, demonstrate that they all belong to a single taxodiaceous taxon.

TL;DR: In this paper, a systematic biometric study of a wide range of gymnosperm cross-field pitting after experimental charcoalification was carried out, focusing on the window-like, piceoid, taxodioid, cupressoid, araucarioid and podocarpoid types.

TL;DR: Several characters of Tortilicaulis and Psilophyton (morphology of the spores; position, shape and sinistral torsion of their sporangia) as well as hypotheses about their respective modes of dehiscence suggest the existence of a link between rhyniophytoids such as Torticaulis, and the Trimerophytina.

TL;DR: A review of miospores, faunas and megafloras of the Lower and Middle Devonian in Libya allows new conclusions to be drawn as mentioned in this paper, based on the application of the Ardenne-Rhenish Devonian miospore zonation in Libya.