T. teuchansii A.G.Lyon & D.Edwards (1991)[1] Trichopherophyton is a genus of extinct vascular plants of the Early Devonian (Pragian, around 410 million years ago).
Uniquely among the Rhynie chert plants, aerial stems bore rigid hairs or spines made up of single cells.
Stems contained circular exarch xylem strands with tracheids showing both annular and spiral thickening.
[2] The internal structure of stems and the presence of lateral two-valved sporangia are indicators of a relationship with the zosterophylls, although evidence is lacking for the distinct sporangial stalks which would be expected of this group.
Zosterophylls which grew from coiled tips, like Trichopherophyton, also typically had a variety of outgrowths; however they had xylem which was elliptical in cross-section.