Hubert Lardeux

TL;DR: The small size of the plants and the presence of thick-walled cortical cells confirm that wood early evolution was driven by hydraulic constraints rather than by the necessity of mechanical support for increasing height.

TL;DR: In this paper, the authors describe two small Early Devonian (407 to 397 million years ago) plants with secondary xylem including simple rays and conclude that wood early evolution was driven by hydraulic constraints rather than by the necessity of mechanical support for increasing height.

TL;DR: The observations indicate that wood evolved initially in plants of small stature that were members of Euphyllophytina, a clade that includes living seed plants, horsetails and ferns and argues that axis rigidity in the earliest woody plants initially evolved through the development of low-density woods.

TL;DR: Leclercq et al. as mentioned in this paper focused on a single specimen of the lignophyte Rellimia (Aneurophytales) from the Dechra Aït Abdallah locality in Central Morocco.

TL;DR: In this paper, two coherent sequences from the Mauges Unit (Armorican Massif, France) are identified. But they are not the best preserved pre-orogenic sequences belonging to the Upper Allochthon.