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RARE Parabolina spinulosa Trilobite Fossil – Upper Cambrian – Dolgellau Series – P. spinulosa Zone – Foel Gron, Wales
RARE Parabolina spinulosa Trilobite Fossil – Upper Cambrian – Dolgellau Series – P. spinulosa Zone – Foel Gron, Wales - Image 2

RARE Parabolina spinulosa Trilobite Fossil – Upper Cambrian – Dolgellau Series – P. spinulosa Zone – Foel Gron, Wales

Original price was: £84.00.Current price is: £75.60.

RARE Parabolina spinulosa Trilobite Fossil

Upper Cambrian – Dolgellau Series

Parabolina spinulosa Zone, Foel Gron, Meirionnydd, Wales, UK

This listing is for a rare and scientifically significant specimen of the trilobite species Parabolina spinulosa, collected from the Foel Gron exposure in Meirionnydd, North Wales. The fossil originates from the Dolgellau Series, a classic British Upper Cambrian geological sequence.

This trilobite species is a diagnostic fossil of the P. spinulosa Zone, one of the key biostratigraphic markers in the late Cambrian of Wales. It offers excellent insight into the paleoecology and biostratigraphy of the British Cambrian seas.

Geological & Palaeontological Details:

  • Species: Parabolina spinulosa
  • Fossil Type: Complete or partial trilobite impression/preservation
  • Locality: Foel Gron, near Trawsfynydd, Meirionnydd, North Wales, UK
  • Formation/Series: Dolgellau Series (Upper Cambrian)
  • Zone: Parabolina spinulosa Zone
  • Geological Stage: Furongian (formerly part of Upper Cambrian)
  • Depositional Environment:
  • Fine-grained, anoxic marine mudstones
  • Deep shelf or basinal environment with low oxygen levels, promoting preservation of soft-bodied faunas
  • Biozone Significance: The P. spinulosa Zone serves as a key trilobite biostratigraphic unit for correlating Upper Cambrian successions across Britain
  • Family: Olenidae
  • Superfamily: Olenoidea
  • Order: Ptychopariida
  • Formally Described By: John William Salter, 1866

Morphological Features:

  • Characterised by:
  • Long, sweeping genal spines extending from the cephalon
  • Distinct glabella with fine segmentation
  • Thin exoskeleton with possible ventral impression
  • Often found as flattened impressions or compressed fossils within fine-grained matrix
  • Important for correlation of trilobite zones across northwestern Europe

Notable & Scientific Importance:

  • A well-documented and biostratigraphically important species
  • Commonly used in defining Upper Cambrian zonation in the British Isles
  • Trilobites of the Olenidae family are often associated with low-oxygen marine environments, supporting an ecological interpretation of dysoxic Cambrian settings

Product Details:

  • You will receive the actual fossil shown in the photo
  • Scale Rule Squares / Cube = 1cm — please refer to photos for full measurements
  • Supplied with a Certificate of Authenticity
  • Professionally prepped and stabilised for long-term preservation
  • Carefully sourced and selected for quality, detail, and provenance

Our Commitment to Authenticity:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity. This specimen has been responsibly sourced and curated by our specialist team, offering both educational and collector value.

If you have any questions or require more photos, feel free to contact us directly.

(Actual as seen)

Only 1 left in stock

SKU: UF3922 Category:

Description

RARE Parabolina spinulosa Trilobite Fossil

Upper Cambrian – Dolgellau Series

Parabolina spinulosa Zone, Foel Gron, Meirionnydd, Wales, UK

This listing is for a rare and scientifically significant specimen of the trilobite species Parabolina spinulosa, collected from the Foel Gron exposure in Meirionnydd, North Wales. The fossil originates from the Dolgellau Series, a classic British Upper Cambrian geological sequence.

This trilobite species is a diagnostic fossil of the P. spinulosa Zone, one of the key biostratigraphic markers in the late Cambrian of Wales. It offers excellent insight into the paleoecology and biostratigraphy of the British Cambrian seas.

Geological & Palaeontological Details:

  • Species: Parabolina spinulosa
  • Fossil Type: Complete or partial trilobite impression/preservation
  • Locality: Foel Gron, near Trawsfynydd, Meirionnydd, North Wales, UK
  • Formation/Series: Dolgellau Series (Upper Cambrian)
  • Zone: Parabolina spinulosa Zone
  • Geological Stage: Furongian (formerly part of Upper Cambrian)
  • Depositional Environment:
  • Fine-grained, anoxic marine mudstones
  • Deep shelf or basinal environment with low oxygen levels, promoting preservation of soft-bodied faunas
  • Biozone Significance: The P. spinulosa Zone serves as a key trilobite biostratigraphic unit for correlating Upper Cambrian successions across Britain
  • Family: Olenidae
  • Superfamily: Olenoidea
  • Order: Ptychopariida
  • Formally Described By: John William Salter, 1866

Morphological Features:

  • Characterised by:
  • Long, sweeping genal spines extending from the cephalon
  • Distinct glabella with fine segmentation
  • Thin exoskeleton with possible ventral impression
  • Often found as flattened impressions or compressed fossils within fine-grained matrix
  • Important for correlation of trilobite zones across northwestern Europe

Notable & Scientific Importance:

  • A well-documented and biostratigraphically important species
  • Commonly used in defining Upper Cambrian zonation in the British Isles
  • Trilobites of the Olenidae family are often associated with low-oxygen marine environments, supporting an ecological interpretation of dysoxic Cambrian settings

Product Details:

  • You will receive the actual fossil shown in the photo
  • Scale Rule Squares / Cube = 1cm — please refer to photos for full measurements
  • Supplied with a Certificate of Authenticity
  • Professionally prepped and stabilised for long-term preservation
  • Carefully sourced and selected for quality, detail, and provenance

Our Commitment to Authenticity:

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity. This specimen has been responsibly sourced and curated by our specialist team, offering both educational and collector value.

If you have any questions or require more photos, feel free to contact us directly.

Additional information

Era

Cambrian
Origin

United Kingdom

Cambrian Information

The Cambrian Period (541–485 million years ago) was the first period of the Paleozoic Era, marking a dramatic explosion of life known as the Cambrian Explosion. During this time, complex multicellular organisms rapidly diversified, giving rise to the first arthropods, mollusks, echinoderms, and chordates—early ancestors of vertebrates. The climate was generally warm, with high sea levels covering much of the continents, creating vast shallow seas where life thrived. Iconic creatures such as Trilobites, Anomalocaris, and Opabinia dominated the oceans, while the first primitive reefs formed. The Cambrian set the stage for the evolution of modern animal groups and the complexity of marine ecosystems.

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