Real Trilobite fossil, Calymen trilobite

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These large Calymene trilobites from Morocco are sold as a pair; each includes both the mold (real fossil specimen) and the cast. In some cases, the mold still includes the physical shell structure of the fossil.

Each of these trilobites are preserved as molds (the positive) within the sandstone formation and also include the the cast (the negative) in which is was found. Though somewhat delicate, these are really cool show pieces and could be quite the educational piece for the young collector.

The specimen you would receive are exactly the pieces pictured, just make your selection from the list. They measure approx 3-3.5 inches long and 1.75-2 inches wide. See listing for photos with a ruler.

Please note that most of these specimens have some repair, usually to glue them back together as they are often found in pieces.

Trilobites are a well-known fossil group, probably the second best known fossil group in the world (behind dinosaurs). They first appeared in the Cambrian period about 570 million years ago and disappeared in a mass extinction event at the end of the Permian period about 250 million years ago.

These Calymene Trilobite Fossils from Morocco are estimated to be 360 million years old.

Trilobites were a group of Arthropods, segmented bodies and limbs, with hard shells. Extinct today, over 15000 species have been classified to date, ranging in size from 1mm - 700mm long