Description
A-Grade Phacops Trilobite from the Devonian of Morocco
This outstanding A-grade Phacops trilobite fossil comes from the renowned Taboumakhlouf Formation near El Ahhsr, Foum Zguid, Morocco. Dating to the Eifelian stage of the Middle Devonian period, approximately 393–388 million years ago, this specimen represents one of the most iconic and recognisable trilobite genera. Carefully selected for its quality and detail, the fossil shown in the photograph is the exact specimen you will receive.
Geological Context – Taboumakhlouf Formation, Eifelian Stage
The Taboumakhlouf Formation is one of Morocco’s most significant Devonian fossil-bearing units, composed primarily of marine limestones and shales deposited in a shallow, warm epicontinental sea. During the Eifelian stage, this region supported a diverse marine ecosystem rich in trilobites, brachiopods, corals, and early vertebrates. The fine sedimentary conditions and low-energy depositional environment allowed for exceptional fossil preservation, capturing delicate anatomical structures in remarkable detail.
Fossil Classification and Scientific Significance
The genus Phacops belongs to the order Phacopida and the family Phacopidae, a group well known for their advanced visual systems and robust exoskeletons. Trilobites in this group are particularly valued for their distinctive schizochroal eyes, which consist of large, individually separated calcite lenses. These complex eyes are among the most sophisticated visual organs found in the fossil record, offering insight into the evolutionary development of vision in early arthropods.
Morphological Features and Notable Traits
This Phacops specimen displays a well-preserved and clearly defined trilobite body plan, including the cephalon (head), thorax, and pygidium (tail). The cephalon is typically broad and features prominent compound eyes positioned laterally, providing a wide field of vision. The thorax is composed of multiple articulated segments, allowing the trilobite to enrol as a defensive mechanism—a characteristic behaviour of phacopid trilobites.
The pygidium is rounded and proportionate, completing the trilobite’s distinctive outline. Fine surface detail across the exoskeleton highlights natural segmentation and subtle ornamentation, enhancing both its scientific and aesthetic appeal. The overall preservation quality makes this specimen particularly desirable for collectors and enthusiasts.
Depositional Environment and Preservation
The fossil was formed in a calm marine setting where fine sediments gradually buried the organism after death, protecting it from scavengers and decay. Over millions of years, mineralisation replaced organic material, preserving the trilobite in stone. The Taboumakhlouf Formation is especially noted for producing trilobites with excellent three-dimensional preservation and fine detail.
Authenticity and Certificate of Guarantee
This fossil is a genuine specimen and includes a Certificate of Authenticity lifetime guarantee card. Each piece has been carefully prepared to reveal its natural structure while maintaining integrity, ensuring you receive a true and scientifically valuable fossil.
Ideal for Collectors, Display, and Education
A Phacops trilobite is a cornerstone piece for any fossil collection. Its combination of scientific importance, visual impact, and historical significance makes it suitable for display in homes, offices, or educational settings. Whether you are an experienced collector or a newcomer to paleontology, this specimen offers lasting value.
Size and Exact Specimen Assurance
Please refer to the photograph for full sizing and scale. The fossil shown is the exact specimen you will receive, providing complete confidence in your purchase and ensuring a unique addition to your collection.
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