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concave shape
Such a formation is extremely rare
especially those from the slate rocks of Southern Germany
Ammonites were armoured cephalopods that died out around 66 million years ago
SOLD | Versteinerte Holzplatte | Arizona, USA Brazil concave shapeOrigin: Arizona, USA Age: Triassic, 220 million years Size: H58cm W53cm D3cm Weight: 14 kg Description: Araucarioxylon arizonicum from the Triassic (approximately 220 million years ago), cut in cross section and polished to show the rich colors so well known from this locality, with the texture preserved at the edges. Additional Information: Petrified wood samples, fossils formed by the infiltration of minerals into the cavities between and within the
US$ 144.50
US$ 10.95
US$ 18.20
US$ 299.50
