Lochkovian Age

What happened during this time?

• Bryophytes such as Sporogonites † are on the landscape

• Eophytes and horneophytes, which both probably appeared in the Silurian, populate the water edges

  • Eophytes are only known from Lochkovian sediments of the Welsh Borderland, but may represent the final days for this group, which probably appeared in the Ordovician Period based upon cryptospores

• Early tracheophytes, such as rhyniophytes and cooksonioids, continue to inhabit wet areas

  • Rhyniophytes: Aberlemnia †, Cooksonia †, Eocooksonia † (=Cooksonella), Culullitheca †, Fusitheca † (=Fusiformitheca), Grisellatheca †, Pertonella †, Resilitheca †, Salopella †, Sporathylacium †, Tarrantia †, Tortilicaulis †, Uskiella †

• Ancestral lycophytes continue to diversify

  • Zosterophyllopsida: Deheubarthia †, Gosslingia †, Hicklingia †, Jugumella †, Sawdoniales, Thrinkophyton †, Xitunia †, Zosterophyllum †

  • Lycopods such as Drepanophycales diversify

  • Barinophytes like Protobarinophyton †

  • Early Devonian lycophyte from Cottonwood Canyon (Wyoming) shows evidence for a rooting system preserved in growth position (Matsunaga & Tomescu, 2016)

• Ancestral trimerophytes, such as Psilophyton †, also appear on the land.

• Other unclassified plants include: Balchaschella †, Bowerophylloides †, Hostinella †, Isidrophyton †, Juliphyton †, Mointina †, Pseudosajania †, Psilophytites †, Salairia †, Stolophyton †, Taeniocrada †, Tastaephyton †, Uksunaiphyton †