Видеоканал на youtube
KOI4 new types of petrified wood (recent additions to our collection):
Petrified wood - it's never enough. Agates in ancient trees.
Petrified trees as they found in natural state
Quick guide to petrified wood. Rare and interesting specimens.
Horsetail cones, agates and cell structures in petrified wood
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Key Facts about Trilobites
Guide to Fossil Shark Teeth.
Solitary (horn) corals: facts and collection.
The story of the phragmocones. Brief introduction to ammonites.
How radioactive are common fossils? Testing rocks with Geiger counter GMC-320
https://youtu.be/NoO4h86edo0