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das in erster Linie aus Kieselsäure oder Siliziumdioxid (SiO2) besteht
Der Versteinerungsprozess findet unter der Erde statt
• Description: Petrified wood block
and lifestyle of these Jurassic crinoids
Additional information: Fossils of Sclerocephalus haeuseri are of great importance for understanding the evolution and diversity of early tetrapods during the Permian
Versteinerte Holzkugel | Indonesien Red das in erster Linie ausOrigin: Indonesia Age: Miocene, 20 million years Size: D24. 5cm Weight: 13. 5kg Description: 20 million year old petrified wood, sanded and polished to reveal the beautiful growth lines and the internal color combination of beige and black tones. Additional information: Petrified wood is fossil wood in which all organic matter has been replaced by minerals, while preserving the structure of the wood. The petrification process occurs underground when a
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