Calamophyton, devonian plant

This is Calamophyton (formerly Duisbergia), these are the oldest tree-like plants in 
the history of the earth.
The stone shows remnants of the tip from which some branches emerge.

The fossil comes from the middle Devonian of the Bergisches Land in Germany

The stone is unbroken, it measures about 23 x 18 x 4 cm.

There are also some crinoid stalk segments present, suggesting deposition in brackish 
water where freshwater and saltwater fossils are found.

No manipulations!

Interesting and rare!

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