07345 - Beautiful 1.02 Inch Chalcedonized Fossil Gastropod Cretaceous Dakhla Neltneria Trilobita - Phacopida - Dalmanitidae

Name: 07345 - Beautiful 1.02 Inch Chalcedonized Fossil Gastropod Cretaceous Dakhla Neltneria Trilobita - Phacopida - Dalmanitidae
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SKU: 9931509554
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Suite notes

Mahogany paper grain — description and returns beneath the overlapping buy card.

Description

Trilobita - Phacopida - Dalmanitidae

No fractures or restoration

Woodward 1901 and Woodward 1902

The anatomical details of the insect are staggering

BAADI BOUYA and MBAREK AMAGHZAZ

07345 - Beautiful 1.02 Inch Chalcedonized Fossil Gastropod Cretaceous Dakhla Neltneria Trilobita - Phacopida - DalmanitidaeChaledonized gastropods (specimen at fat left is 3. 0 cm tall) these snail shells have been replaced by translucent, fibrous, microcrystalline quartz (SiO2). This variety of quarz is called chalcedony. Chalcedonization is a variety of silicification. Chalcedonized fossils are uncommon.

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