Arthropod tracks, Devonian age

This stone with several clear visible arthropod tracks comes from the Devonian of Waxweiler in Germany.
It's a super rare chance find.

The slab contains several clear traces of very early arthropods.
Such fossils are rare and are hardly offered for sale. The German location makes the piece even more interesting.

The stone mesaures about 20 x 18 x 1 cm. It was broken and have been glued professionally.

No manipulations whatsoever!