Rare Olenus Trilobite Fossil uppermost Cambrian Shineton Shales Shropshire UK Specimen

Description

Rare Olenus Trilobite Fossil from the Cambrian of Shropshire

This genuine fossil specimen represents a trilobite belonging to the genus Olenus, discovered within the Shineton Shales of Shineton, Shropshire, United Kingdom. These rocks date to the Late Cambrian Period (Furongian Epoch), approximately 497–485 million years ago, making this fossil a remarkable relic from one of the earliest complex marine ecosystems in Earth’s history.

The fossil displayed in the photographs is the exact specimen you will receive, carefully selected for its preservation and scientific interest. This authentic trilobite fossil includes a Certificate of Authenticity with a lifetime guarantee card, confirming that it is a genuine prehistoric specimen.

Full sizing of the fossil can be seen in the listing photographs.

Geological Origin – Shineton Shales Formation

The fossil originates from the Shineton Shales, an important Cambrian geological formation exposed in Shropshire, England. These rocks consist primarily of fine-grained marine shales and mudstones that were deposited in ancient ocean basins during the late Cambrian.

During the Furongian Epoch, the region that is now Shropshire was located along the margins of the ancient continent Avalonia, positioned in southern hemisphere tropical latitudes. The area was covered by relatively deep marine environments where fine sediment accumulated slowly on the seabed.

The Shineton Shales are known for preserving a range of early marine organisms including trilobites, brachiopods, and other invertebrates that lived on or within the sediment of the ocean floor. These deposits provide valuable insight into early marine ecosystems and the diversification of arthropods during the Cambrian.

Olenus Trilobites – Early Arthropods of the Cambrian Seas

The genus Olenus belongs to a group of trilobites that were widespread in Late Cambrian marine environments. Trilobites were among the most successful arthropods of the Paleozoic Era, existing for nearly 270 million years before their extinction at the end of the Permian.

Taxonomic classification:

• Phylum: Arthropoda
• Class: Trilobita
• Order: Ptychopariida
• Family: Olenidae
• Genus: Olenus

Members of the Olenidae family are particularly associated with deeper marine environments and are often found in shale deposits that formed under low-oxygen conditions.

These trilobites likely lived close to the seabed where they fed on organic material within the sediment or scavenged small organisms.

Morphology and Distinctive Characteristics

Trilobites are named for their three longitudinal lobes, which run along the body from head to tail. The exoskeleton of Olenus is divided into three primary sections: the cephalon (head), thorax, and pygidium (tail).

Typical features associated with the genus Olenus include:

• A relatively small cephalon with a defined glabella
• Multiple articulated thoracic segments
• A narrow central axial lobe
• Pleural lobes extending outward on each segment
• A small pygidium forming the tail shield

These trilobites possessed a jointed exoskeleton that allowed flexibility and movement along the seafloor. Like other trilobites, they could also enroll their bodies defensively, curling into a protective position when threatened by predators.

The fossilised exoskeleton preserved in this specimen reflects the mineralised outer shell that protected the animal during life.

Cambrian Marine Ecosystems

The Cambrian Period is often referred to as the time of the Cambrian Explosion, when many major animal groups first appeared in the fossil record. Trilobites were among the most abundant and successful organisms during this time.

The marine environments where Olenus lived were populated by a range of early life forms including:

• Trilobites and other arthropods
• Brachiopods
• Early molluscs
• Primitive echinoderms
• Worm-like organisms living within sediment

These organisms inhabited the ocean floor and surrounding water column, forming complex ecological communities that represent some of the earliest examples of diverse marine ecosystems.

The shale sediments that preserved these fossils formed in quiet offshore environments, where fine mud slowly buried the remains of marine organisms.

Authentic Cambrian Trilobite Fossil for Collectors

This specimen represents a genuine trilobite fossil from the Cambrian rocks of Shropshire, one of Britain’s most important regions for early Paleozoic fossils.

Key features of this specimen include:

• Genuine Olenus trilobite fossil
• From the Shineton Shales Formation
• Cambrian Period, Furongian Epoch
• Collected at Shineton, Shropshire, United Kingdom
• Photographs show the actual fossil specimen you will receive
• Supplied with a Certificate of Authenticity and lifetime guarantee

This remarkable fossil is an excellent addition to Cambrian fossil collections, trilobite collections, geology displays, and educational natural history exhibits, offering a direct connection to marine life that lived nearly 500 million years ago during the early evolution of complex life on Earth.