P217Ho, chert from Altenburg - Nobitz gravel pit
Syringodendron sp. on horizontal fracture face along the tree
trunk surface in the chert layer,
seen as paired markings on the textured surface, coarse quartz (centre), (Let
the mouse move
over the picture to help you see.) coll. KRETZSCHMAR/Chemnitz,
width of the specimen ~ 10cm.