2. Diversification

Plant groups covered in class

• Bryophytes (mosses, liverworts)

• Aglaophyton † (early branching plants)

• Rhynia † (Rhyniophytes)

• Sawdonia † (Zosterophylls)

• Clubmosses or Lycopods

  • Asteroxylon † (Drepanophytes)

• Psilophyton † (Trimerophytes)

Extended Learning - Groups Not Covered in Class

• Horneophyton (earliest branching plants)

• Cooksonioids † (earliest true vascular plants)

• Nematophytes † (strange plant-like, fungus-like organisms of unknown origin)

• Clubmosses or Lycopods

  • Protolepidodendales † (early scale trees)

  • Lycopodiales (true clubmosses)