Template:Stem coralline see also

• Coralline algae#Evolution
• Other stem-group corallines:
  • Arenigiphyllum (Ordovician)
  • Petrophyton (Ordovician : Caradoc)
  • Graticula (Silurian : Wenlock)
  • Halysis (Ordovician)
  • Archaeolithophyllum (Pennsylvanian)
  • ?Maimonachaetetes (Mississippian)
  • ?Palaeoaplysina (Pennsylvanian – Permian; possibly an animal)
  • ? Solenoporaceae (Ordovician)