Query: Plants that are Middle Devonian
Domain: plants
Relevant documents:
Dutoitea
Rhacophytales
Thursophyton
Progymnosperm
Pertica
Drepanophycus
Wattieza
Metzgeriothallus
Hicklingia
Tetraxylopteris
Orestovia
Taeniocrada
Runcaria
Aneurophyton
Stockmansella