Fossils for Sale - High-quality BRITISH and WORLDWIDE Fossils. An impressive selection of fossils, including Ammonites, Trilobites, Belemnites, Fossil Fish, Fossil Shark Teeth, Fossilised Insects in Amber, Dinosaurs, and Reptiles. UK Fossils was formed in 1988 and collects and preps our own fossils in the heart of the Jurassic Coast, collecting fossils from Lyme Regis, Charmouth and Somerset. Our passion for fossils is reflected in our carefully curated collection, which includes some of the rarest and most unique specimens available.

FREE UK DELIVERY - Save up to 60%

SALE 10%
Hollardops mesocristata Fossil Trilobite Devonian Timrhanrhart Formation Morocco Genuine Specimen with Certificate of Authenticity
Hollardops mesocristata Fossil Trilobite Devonian Timrhanrhart Formation Morocco Genuine Specimen with Certificate of Authenticity - Image 2

Hollardops mesocristata Fossil Trilobite Devonian Timrhanrhart Formation Morocco Genuine Specimen with Certificate of Authenticity

Original price was: USD $100.36.Current price is: USD $90.32.

Authentic Hollardops Trilobite from Morocco

This listing features a superb Hollardops mesocristata trilobite fossil originating from the Timrhanrhart Formation, Eifelian Stage of the Devonian Period, collected at El Ahhsr near Foum Zguid, Morocco. This striking specimen represents one of the most iconic and scientifically important trilobites from North Africa, and it is highly sought-after by both collectors and researchers.

Every specimen we sell is 100% genuine and is supplied with a Certificate of Authenticity for your complete confidence. The fossil pictured is the exact specimen you will receive, shown with a 1cm scale cube for full sizing reference.

Geological Setting – Timrhanrhart Formation

The Timrhanrhart Formation is part of the Eifelian stage (393–388 million years ago) of the Middle Devonian Period, a time when Morocco was located in the southern tropics, submerged beneath warm, shallow seas. These seas were home to diverse marine ecosystems, dominated by corals, brachiopods, ammonoids, and trilobites.

The preservation quality of fossils from this region is world-renowned, with the fine-grained sediments capturing incredible detail in the exoskeletons of trilobites. The Foum Zguid region, in particular, has produced some of the most complete and visually impressive trilobite specimens in the world, making it a major hub for paleontological study.

The Species – Hollardops mesocristata

Hollardops mesocristata belongs to the order Phacopida and family Asteropyginae. It is named in honour of Dr. Henry Hollard, a French geologist whose work significantly advanced knowledge of Devonian stratigraphy in Morocco. Hollardops is closely related to the Phacopidae trilobites, known for their large, well-developed compound eyes.

Key characteristics of Hollardops mesocristata include:

  • A broad cephalon (head shield) with a convex glabella.
  • Exceptionally large schizochroal compound eyes, each containing hundreds of calcite lenses for acute vision.
  • A finely segmented thorax, consisting of 11 articulated segments that provided flexibility.
  • A wide and fan-shaped pygidium (tail shield), with detailed segmentation and surface ornamentation.
  • Rows of tiny tubercles and spines across the body, thought to provide defence and camouflage on the seafloor.

Preparation and Preservation

This fossil has been expertly prepared by a skilled Moroccan specialist, using precision techniques to reveal the natural morphology of the trilobite. The careful work highlights the fine details of the exoskeleton, including its eye structure, cephalic features, and thoracic segmentation. Unlike mass-produced or poorly prepped fossils, this example demonstrates professional preparation that enhances both its scientific and display value.

The preparation of fossils like this provides a fair and ethical livelihood for local Moroccan families, who have passed down fossil-hunting and preparation skills for generations. By purchasing this specimen, you are directly supporting these communities in a sustainable and ethical way.

Scientific and Collectible Significance

Hollardops mesocristata trilobites are among the most collectible fossils due to their striking appearance and scientific importance. Their large size, ornate spines, and extraordinary eyes make them stand out among trilobites of the Devonian. Specimens such as this one offer an educational insight into trilobite anatomy and behaviour, as well as a captivating display piece of natural history.

Collectors value Hollardops both for their rarity in fine condition and for their role in paleontological research. This A-grade specimen represents a prime example of the species, suitable for private collections, educational institutions, or museums.

Key Details of this Specimen

  • Species: Hollardops mesocristata
  • Order: Phacopida
  • Family: Asteropyginae
  • Age: Middle Devonian, Eifelian Stage (~393–388 million years ago)
  • Formation: Timrhanrhart Formation
  • Locality: El Ahhsr, Foum Zguid, Morocco
  • Fossil Type: Trilobite fossil (A-grade preparation)
  • Authenticity: 100% genuine with Certificate of Authenticity
  • Exact Specimen: The fossil in the photographs is the one supplied
  • Preparation: Expertly hand-prepared by a Moroccan specialist
  • Scale Reference: 1cm cube included in images for size accuracy

This Hollardops mesocristata trilobite fossil is a rare opportunity to own a premium-grade example of one of Morocco’s most iconic trilobites, combining exceptional preservation, scientific value, and striking visual appeal.

(Actual as seen)

Only 1 left in stock

SKU: UF5830 Category:

Description

Authentic Hollardops Trilobite from Morocco

This listing features a superb Hollardops mesocristata trilobite fossil originating from the Timrhanrhart Formation, Eifelian Stage of the Devonian Period, collected at El Ahhsr near Foum Zguid, Morocco. This striking specimen represents one of the most iconic and scientifically important trilobites from North Africa, and it is highly sought-after by both collectors and researchers.

Every specimen we sell is 100% genuine and is supplied with a Certificate of Authenticity for your complete confidence. The fossil pictured is the exact specimen you will receive, shown with a 1cm scale cube for full sizing reference.

Geological Setting – Timrhanrhart Formation

The Timrhanrhart Formation is part of the Eifelian stage (393–388 million years ago) of the Middle Devonian Period, a time when Morocco was located in the southern tropics, submerged beneath warm, shallow seas. These seas were home to diverse marine ecosystems, dominated by corals, brachiopods, ammonoids, and trilobites.

The preservation quality of fossils from this region is world-renowned, with the fine-grained sediments capturing incredible detail in the exoskeletons of trilobites. The Foum Zguid region, in particular, has produced some of the most complete and visually impressive trilobite specimens in the world, making it a major hub for paleontological study.

The Species – Hollardops mesocristata

Hollardops mesocristata belongs to the order Phacopida and family Asteropyginae. It is named in honour of Dr. Henry Hollard, a French geologist whose work significantly advanced knowledge of Devonian stratigraphy in Morocco. Hollardops is closely related to the Phacopidae trilobites, known for their large, well-developed compound eyes.

Key characteristics of Hollardops mesocristata include:

  • A broad cephalon (head shield) with a convex glabella.
  • Exceptionally large schizochroal compound eyes, each containing hundreds of calcite lenses for acute vision.
  • A finely segmented thorax, consisting of 11 articulated segments that provided flexibility.
  • A wide and fan-shaped pygidium (tail shield), with detailed segmentation and surface ornamentation.
  • Rows of tiny tubercles and spines across the body, thought to provide defence and camouflage on the seafloor.

Preparation and Preservation

This fossil has been expertly prepared by a skilled Moroccan specialist, using precision techniques to reveal the natural morphology of the trilobite. The careful work highlights the fine details of the exoskeleton, including its eye structure, cephalic features, and thoracic segmentation. Unlike mass-produced or poorly prepped fossils, this example demonstrates professional preparation that enhances both its scientific and display value.

The preparation of fossils like this provides a fair and ethical livelihood for local Moroccan families, who have passed down fossil-hunting and preparation skills for generations. By purchasing this specimen, you are directly supporting these communities in a sustainable and ethical way.

Scientific and Collectible Significance

Hollardops mesocristata trilobites are among the most collectible fossils due to their striking appearance and scientific importance. Their large size, ornate spines, and extraordinary eyes make them stand out among trilobites of the Devonian. Specimens such as this one offer an educational insight into trilobite anatomy and behaviour, as well as a captivating display piece of natural history.

Collectors value Hollardops both for their rarity in fine condition and for their role in paleontological research. This A-grade specimen represents a prime example of the species, suitable for private collections, educational institutions, or museums.

Key Details of this Specimen

  • Species: Hollardops mesocristata
  • Order: Phacopida
  • Family: Asteropyginae
  • Age: Middle Devonian, Eifelian Stage (~393–388 million years ago)
  • Formation: Timrhanrhart Formation
  • Locality: El Ahhsr, Foum Zguid, Morocco
  • Fossil Type: Trilobite fossil (A-grade preparation)
  • Authenticity: 100% genuine with Certificate of Authenticity
  • Exact Specimen: The fossil in the photographs is the one supplied
  • Preparation: Expertly hand-prepared by a Moroccan specialist
  • Scale Reference: 1cm cube included in images for size accuracy

This Hollardops mesocristata trilobite fossil is a rare opportunity to own a premium-grade example of one of Morocco’s most iconic trilobites, combining exceptional preservation, scientific value, and striking visual appeal.

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.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Related products