Fossilized Trilobite Calymene sp.
Size range from 1 to 2 inches long.
Large, top quality Calymene Moroccan trilobite. Excellent quality, hand selected specimens! An Ordovician (450 mya) trilobite from the Late Cretaceous beds of Southern Morocco. Trilobites (meaning "three lobes") are a group of extinct marine arachnomorph arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period (521 million years ago), and they flourished throughout the lower Paleozoic era before beginning a drawn-out decline to extinction when, during the Devonian, all trilobite orders except the Proetids died out. Trilobites disappeared in the mass extinction at the end of the Permian about 252 million years ago. The trilobites were among the most successful of all early animals, existing in oceans for almost 300 million years.
The photos are representative of one (1) randomly chosen fossil trilobite you will receive. These are not perfect, almost all will have some repaired cracks, and restoration, especially to the Cephalon ("head") which rarely survives fossilization.
Each fossilized trilobite is nicely packaged with an informational insert.
This is an actual fossil Trilobite.
Please be aware of the nature of fossils:
Being buried under the ground for millions of years under tons of pressure tends to be Calymene sp.. No fossil comes out of the ground whole and perfect. Most fossils have undergone some restoration, while others are altered by man simply to enhance their presentation in different ways. The workers do a very professional job, unearthing and preserving these natural treasures, however, commonly natural cracks are visible on the surface. These are part of the natural beauty of the fossil and not considered defects.