Sciadophyton

Sciadophyton is a morphotaxon of lower Devonian plants known only from compression fossils.^[2][3] It is interpreted as the monoicous gametophyte of a vascular land plant, because its vascularised branches end in a cup-shaped structure bearing gametangia, both antheridia and archegonia,^[4] but little structural information is preserved at the cellular level. It formed rosettes of stems, which may have radiated from a basal gametophytic corm-like thallus or from a central 'stem' or even from a root system, although there is not enough evidence to discriminate between these possibilities.^[3]

Sciadophyton Temporal range: Early Devonian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Sciadophyton fossil on display at the Museum of Man and Nature
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Subdivision:	†Rhyniophytina
Class:	†Rhyniopsida
Order:	†Rhyniales
Family:	†Rhyniaceae
Genus:	†Sciadophyton Steinrnann 1930