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near Antwerp
the Stegodon is thought to have become extinct in the late Pleistocene
Ambient sand was incorporated into the crystal structures that form in arid and sandy conditions
width 10cm
Dating from the upper Cretaceous
Calamite tree seed fern white fossil near AntwerpFossilised leaves from the extinct Calamite tree which have been preserved in an ironstone concretion. This two part fossil shows both the fern and its 'negative'. The Calamite was a medium sized tree, growing to around 30 meters (100 feet). Mazon Creek Fossil Beds, Braidwood, Illinois, USA. Carboniferous, circa 309 million years old. Length: 7cm width: 4cm depth: 2cm Measurements are approximate and the minimum size you should expect your item to be.
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