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Hollardops mesocristata Trilobite Fossil A Grade Devonian Morocco Specimen Authentic Certified
Hollardops mesocristata Trilobite Fossil A Grade Devonian Morocco Specimen Authentic Certified - Image 2
Hollardops mesocristata Trilobite Fossil A Grade Devonian Morocco Specimen Authentic Certified - Image 3

Hollardops mesocristata Trilobite Fossil A Grade Devonian Morocco Specimen Authentic Certified

Original price was: £180.00.Current price is: £153.00.

A Grade Hollardops mesocristata Trilobite Fossil

This exceptional A grade Hollardops mesocristata trilobite fossil originates from the renowned Taboumakhlouf Formation near El Ahhsr, Foum Zguid, Morocco. Dating to the Middle Devonian, specifically the Eifelian stage approximately 393–387 million years ago, this specimen represents a beautifully preserved example of one of the most sought-after trilobites in the fossil collecting world.

The fossil shown in the photographs is the exact specimen you will receive, carefully selected for its outstanding preparation, fine detail, and overall aesthetic quality. It is a genuine fossil and includes a Certificate of Authenticity lifetime guarantee card, providing full confidence in authenticity and provenance.

Geological Context & Depositional Environment

The Taboumakhlouf Formation is one of Morocco’s most important Devonian fossil-bearing units, known for producing exceptionally preserved trilobites within fine-grained limestone and shale deposits. During the Eifelian stage, this region was submerged beneath a warm, shallow marine sea rich in life.

Sediments accumulated slowly in relatively calm conditions, allowing delicate organisms such as trilobites to be preserved in remarkable detail. Periodic burial events protected these organisms from scavengers and decay, while mineralisation processes ensured long-term fossil preservation.

This environment supported a diverse marine ecosystem including brachiopods, corals, crinoids, and other arthropods, making it a key locality for understanding Devonian biodiversity.

Taxonomy & Classification

Hollardops mesocristata belongs to the order Phacopida, within the class Trilobita. It is part of the family Acastidae, a group known for their robust bodies and often elaborate surface ornamentation.

Trilobites are extinct marine arthropods that thrived for over 270 million years, and members of the Phacopida are particularly noted for their large, well-developed compound eyes and complex exoskeleton structures. Hollardops species are especially prized due to their distinctive morphology and high-quality preservation.

Morphology & Distinctive Features

This specimen displays the classic three-lobed body plan of trilobites, consisting of the cephalon (head), thorax, and pygidium (tail). Hollardops mesocristata is recognised for its well-defined segmentation, pronounced axial lobe, and finely detailed exoskeleton.

The cephalon typically features prominent schizochroal eyes composed of large, individually calcified lenses, a defining trait of phacopid trilobites. The glabella is well developed, often showing subtle furrows, while the thoracic segments are clearly articulated, giving the fossil a dynamic and lifelike appearance.

Fine surface texture, including granulation or subtle ornamentation, may be visible across the exoskeleton, reflecting the original biological structure. The overall symmetry and completeness of this specimen contribute significantly to its display appeal.

Authenticity & Quality Assurance

This fossil is 100% genuine and has been carefully selected for its high-grade preservation and preparation. Moroccan trilobites of this quality are highly regarded worldwide, particularly when professionally prepared to reveal fine anatomical detail.

The included Certificate of Authenticity lifetime guarantee card ensures confidence for collectors, educators, and enthusiasts. The fossil shown in the images is the exact specimen you will receive, offering complete transparency.

Collectability & Display Appeal

A grade Hollardops mesocristata trilobites are highly collectible due to their striking appearance, scientific importance, and excellent preservation. Their detailed morphology and natural beauty make them standout pieces in any fossil collection.

This specimen is ideal for display, whether in a private collection, educational setting, or as a unique gift. Its combination of geological significance and visual impact ensures it will remain a prized piece for years to come.

Please refer to the photographs for full sizing and condition, as they clearly show the exact specimen available.

(Actual as seen)

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Description

A Grade Hollardops mesocristata Trilobite Fossil

This exceptional A grade Hollardops mesocristata trilobite fossil originates from the renowned Taboumakhlouf Formation near El Ahhsr, Foum Zguid, Morocco. Dating to the Middle Devonian, specifically the Eifelian stage approximately 393–387 million years ago, this specimen represents a beautifully preserved example of one of the most sought-after trilobites in the fossil collecting world.

The fossil shown in the photographs is the exact specimen you will receive, carefully selected for its outstanding preparation, fine detail, and overall aesthetic quality. It is a genuine fossil and includes a Certificate of Authenticity lifetime guarantee card, providing full confidence in authenticity and provenance.

Geological Context & Depositional Environment

The Taboumakhlouf Formation is one of Morocco’s most important Devonian fossil-bearing units, known for producing exceptionally preserved trilobites within fine-grained limestone and shale deposits. During the Eifelian stage, this region was submerged beneath a warm, shallow marine sea rich in life.

Sediments accumulated slowly in relatively calm conditions, allowing delicate organisms such as trilobites to be preserved in remarkable detail. Periodic burial events protected these organisms from scavengers and decay, while mineralisation processes ensured long-term fossil preservation.

This environment supported a diverse marine ecosystem including brachiopods, corals, crinoids, and other arthropods, making it a key locality for understanding Devonian biodiversity.

Taxonomy & Classification

Hollardops mesocristata belongs to the order Phacopida, within the class Trilobita. It is part of the family Acastidae, a group known for their robust bodies and often elaborate surface ornamentation.

Trilobites are extinct marine arthropods that thrived for over 270 million years, and members of the Phacopida are particularly noted for their large, well-developed compound eyes and complex exoskeleton structures. Hollardops species are especially prized due to their distinctive morphology and high-quality preservation.

Morphology & Distinctive Features

This specimen displays the classic three-lobed body plan of trilobites, consisting of the cephalon (head), thorax, and pygidium (tail). Hollardops mesocristata is recognised for its well-defined segmentation, pronounced axial lobe, and finely detailed exoskeleton.

The cephalon typically features prominent schizochroal eyes composed of large, individually calcified lenses, a defining trait of phacopid trilobites. The glabella is well developed, often showing subtle furrows, while the thoracic segments are clearly articulated, giving the fossil a dynamic and lifelike appearance.

Fine surface texture, including granulation or subtle ornamentation, may be visible across the exoskeleton, reflecting the original biological structure. The overall symmetry and completeness of this specimen contribute significantly to its display appeal.

Authenticity & Quality Assurance

This fossil is 100% genuine and has been carefully selected for its high-grade preservation and preparation. Moroccan trilobites of this quality are highly regarded worldwide, particularly when professionally prepared to reveal fine anatomical detail.

The included Certificate of Authenticity lifetime guarantee card ensures confidence for collectors, educators, and enthusiasts. The fossil shown in the images is the exact specimen you will receive, offering complete transparency.

Collectability & Display Appeal

A grade Hollardops mesocristata trilobites are highly collectible due to their striking appearance, scientific importance, and excellent preservation. Their detailed morphology and natural beauty make them standout pieces in any fossil collection.

This specimen is ideal for display, whether in a private collection, educational setting, or as a unique gift. Its combination of geological significance and visual impact ensures it will remain a prized piece for years to come.

Please refer to the photographs for full sizing and condition, as they clearly show the exact specimen available.

Additional information

Era

Devonian
Origin

Morocco

Devonian Information

The Devonian Period (419–359 million years ago), known as the "Age of Fishes," was a time of major evolutionary advances in both marine and terrestrial life. The oceans were dominated by armored placoderm fish, early sharks, and lobe-finned fish like Tiktaalik, which had features that helped vertebrates transition to land. Coral reefs flourished, and ammonites became more diverse. On land, the first forests appeared, with early trees like Archaeopteris, leading to a drop in atmospheric carbon dioxide and climate cooling. The first tetrapods (four-legged vertebrates) began evolving from fish, marking a critical step in the evolution of amphibians. The period ended with the Devonian extinction, likely caused by ocean anoxia and climate shifts, wiping out many marine species and reshaping ecosystems.

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