Lochkovian Epoch

Plants increase in size

Lochkovian stage (419-411 Ma) is the first epoch of the Early Devonian that occurs after the Pridoli (Silurian) and before the Emsian

The Lochkovian epoch (419-411 Ma) is the first epoch of the Devonian, occurring after the Silurian, and before the Pragian

Phanerozoic; Paleozoic; Devonian; Early Devonian
In North America the Lochkovian Stage is represented by Gedinnian or Helderbergian time

Bryophytes such Sporogonites are on the landscape
Eophytes and Horneophytes, which both probably appeared in the Silurian, populate 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 cooksonoids 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 (WY) shows evidence for a rooting system preserved in growth position (Matsunaga and 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

Above: Fig 2 of Matsunaga and Tomescu 2016, showing root arrangement and variable preservation of root-bearing axes and attached roots

Above: Fig 4 of Matsunaga and Tomescu 2016, showing roots of the Cottonwood Canyon lycophyte