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a complex borosilicate mineral known for its rich color diversity and unique crystal formations
which may have provided defense against predators and facilitated the protection of juveniles within the group
prized for its high purity
there have been several discoveries of polycotylid plesiosaur fossils
Despite this apparent adaptation to the open plains
2.6" Polished Hexagonaria Coral Fossil Devonian Age 350 Million Yrs Old Morocco Andalucite a complex borosilicate mineral knownLocation: Assa Zag Region, Morocco Weight: 3. 1 Ounces Dimensions: 2. 6 Inches Long, 2. 3 Inches Wide, 0. 8 Inches Thick The item pictured is the one you will receive. Devonian Age, 350 million years old Hexagonaria is an extinct colonial coral that flourished in Devonian oceans more than 350 million years ago, when vast shallow seas covered much of what is now North America and North Africa. This rugose coral formed massive colonies made up of