Figure 62: Keriotheca (double arrow) in equtorial section of unidentified Triticites and as plasticine model by M. Reichel (unpublished, modified).
cho: choma; kalv: keriothecal alveoles; k ex: extern keriotheca; k in: intern keriotheka; s: septum; s₁: septum belonging to whorl bearing the keriotheka; s₂: septum of following whorl; te: tectum.