3.7" Flexicalymene Trilobite Fossil Ordovician Age Tazzarine Region Morocco COA

Location: Tazzarine Region, Morocco

Weight: 4.2 Ounces

Dimensions: 3.7 Inches Long, 2.1 Inches Wide, 1 Inch Thick

Comes with a Certificate of Authenticity

The item pictured is the one you will receive.

Flexicalymene Trilobite

Trilobites are one of the most fascinating extinct groups of marine arthropods, belonging to the class Trilobita. Emerging around 521 million years ago during the Early Cambrian, they were among the earliest complex animals on Earth. These ancient creatures inhabited the oceans of the Paleozoic Era and are notable for their mineralized exoskeletons, which made them highly fossilizable and allowed their delicate anatomical features to survive for hundreds of millions of years.

The trilobite body is divided into three longitudinal lobes: a central axial lobe and two pleural lobes on either side, giving these animals their signature “three-lobed” appearance. Their bodies are further segmented into three main regions: the cephalon (head) with eyes, sensory organs, and feeding appendages; the thorax, consisting of articulated segments for flexibility; and the pygidium, or tail section, where segments are fused. This combination of segmentation and rigid exoskeleton made trilobites both agile and well-protected.

From small, simple forms to highly elaborate species with spines and ornate ornamentation, trilobites provide a unique glimpse into early marine life. Their incredible diversity, fossil abundance, and intricate anatomy make them a cornerstone of Paleozoic paleontology and a prized specimen for fossil collectors.

Morphologically, the trilobite body is divided into three major sections:

1.  a cephalon (or head) with eyes, mouthparts, and sensory organs such as antennae.

2. A middle region called the thorax with several overlapping segments (anywhere from 2 to 61).

3.  a pygidium (or tail section) in which the segments were fused.

Please be aware of the nature of fossils:

Being buried underground for millions of years under immense pressure can be quite harsh. Few fossils emerge completely intact; most require some restoration, and some are modified by humans to improve their appearance. Moroccan workers are highly skilled in excavating and conserving these natural treasures, though natural cracks often appear on the surface. These cracks are part of the fossil's natural charm and are not regarded as flaws.