Fig. 3
From: Permian scorpions from the Petrified Forest of Chemnitz, Germany
Geological section of the excavation. Detailed stratigraphic log of individual lithologies and biota at Chemnitz. Scorpions were found in the palaeosol horizon S 6.7, associated with tree roots in their original position. Higher levels in the sequence (S 3–5) reflect the explosive volcanism (e.g. air fall tuffs and pyroclastic flow deposits) believed to be responsible for preserving this remarkable biota in situ