Locality: Ktaoua Group Formation, Anti-Atlas Region, Morocco

Era: Ordovician Period (Late Ordovician)
Geological Age: approximately 453 to 444 mya

Description: Think of them as little beetles that used to scurry along the ocean floor. Calymene and its close relatives (family Calymenidae) lived from the Ordovician into the Devonian, surviving the end-Ordovician mass extinction. Trilobites range in size with the smallest being 1mm and the biggest being 72cm long. Trilobites ate anything smaller than themselves and were diverse because some were scavengers, others predators, and also filter feeders.

Small
Approximate Size of 1 piece: 40mm x 20mm x 10mm
Approximate Weight of 1 piece: 11g

Medium
Approximate Size of 1 piece: 60mm x 40mm x 30mm
Approximate Weight of 1 piece: 50g

Large
Approximate Size of 1 piece: 80mm x 50mm x 30mm
Approximate Weight of 1 piece: 100g

Quantity: 1pc

We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.