Armoricaphyton is an extinct monospecific genus of vascular land plants described from Early Devonian (late Pragian-earliest Emsian) outcrops of the Chalonnes...

short-statured, and grew hardly more than a few centimetres tall. Fossils of Armoricaphyton chateaupannense, about 400 million years old, represent the oldest known...

gracilis Stepanov Aphyllopteris rudis Rad. Aphyllopteris tenuis Petrosyan Armoricaphyton chateaupannense Strullu-Derrien, Kenrick, Tafforeau, Cochard, Bonnemain...

been observed in the slightly older (late Pragian-earliest Emsian) Armoricaphyton chateaupannense from western France and in an unnamed basal euphyllophyte...

and the chemistry of the tracheids of the earliest known woody plant Armoricaphyton chateaupannense is published by Strullu-Derrien et al. (2019). A study...