Equisetites arenaceus, shoot of a herbaceous horsetail.
Schleerieth (Dld),  Lower Keuper (Triassic).
Collection and photo: K.-P. Kelber, Würzburg.

Schizoneura paradoxa. A herbaceous horsetail with split leaves.
Schleerieth (Dld), Lower Keuper (Triassic).
Collection and photo: K.-P. Kelber, Würzburg.

Neocalamites merianii. Herbaceous horsetail
which could reach a size of 2 m.
Schleerieth (Dld), Lower Keuper (Triassic).
Collection and photo: K.-P. Kelber, Würzburg.