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RARE Niobella homfrayi Trilobite Fossil – Tremadoc Stage, Ordovician – Carreg-y-Diocyn, Wales – Certified Genuine
RARE Niobella homfrayi Trilobite Fossil – Tremadoc Stage, Ordovician – Carreg-y-Diocyn, Wales – Certified Genuine - Image 2

RARE Niobella homfrayi Trilobite Fossil – Tremadoc Stage, Ordovician – Carreg-y-Diocyn, Wales – Certified Genuine

Original price was: USD $33.77.Current price is: USD $30.39.

RARE Niobella homfrayi Trilobite Fossil

Tremadoc Stage, Lower Ordovician – Waterfalls at Carreg-y-Diocyn, Wales

This rare and scientifically significant fossil is a specimen of Niobella homfrayi, an extinct genus of trilobite from the Tremadocian (Early Ordovician) period, found at the classic fossil locality near the waterfalls at Carreg-y-Diocyn, Wales.

Known for its well-preserved cranidial (headshield) and pygidial (tail) features, Niobella homfrayi was part of the early radiation of trilobites following the Cambrian explosion. This piece is a carefully selected fossil displaying clear anatomical features useful for both collectors and academic enthusiasts.

Geological & Palaeontological Details:

  • Fossil Type: Complete or partial trilobite fossil
  • Species: Niobella homfrayi
  • Geological Stage: Tremadoc (Early Ordovician, ~485–477 million years ago)
  • Formation: Likely within the Dolgellau or Lower Llanvirn successions near Trawsfynydd
  • Locality: Carreg-y-Diocyn waterfalls, near Trawsfynydd, Wales
  • Depositional Environment:
  • Outer shelf marine setting
  • Low-energy mudstone and shale environment
  • Often associated with oxygen-deficient bottom waters contributing to exceptional preservation
  • Biozone: May correlate with Shumardia (Conophrys) salopiensis or Dictyonema flabelliforme biozones
  • Morphological Features:
  • Elongated glabella (central head lobe)
  • Broad fixed cheeks with genal spines
  • Well-defined thoracic segments (often fewer than 10)
  • Pygidium semicircular with multiple pleural furrows
  • Family: Nileidae
  • Superfamily: Olenoidea
  • Order: Ptychopariida
  • Formally Described By: Hicks (1875) – based on Welsh localities

Item Specifics:

  • Scale Reference: 1cm cube (see photo for exact sizing)
  • Specimen Integrity: Photographed specimen is the exact one you will receive
  • Documentation: Includes a Certificate of Authenticity verifying its identification, origin, and legitimacy
  • Condition: Natural – no restorations or composites

Why Purchase From Us:

  • Guaranteed 100% Genuine Fossil
  • Individually curated and documented by specialists
  • Ethically sourced from classic and legal fossil localities
  • Ideal for collectors, educators, and display

This is a rare opportunity to acquire a historically and scientifically important trilobite from one of Britain’s classic Ordovician fossil localities. An ideal specimen for any collector focusing on the early Paleozoic or Welsh trilobites.

(Actual as seen)

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SKU: UF3935 Category:

Description

RARE Niobella homfrayi Trilobite Fossil

Tremadoc Stage, Lower Ordovician – Waterfalls at Carreg-y-Diocyn, Wales

This rare and scientifically significant fossil is a specimen of Niobella homfrayi, an extinct genus of trilobite from the Tremadocian (Early Ordovician) period, found at the classic fossil locality near the waterfalls at Carreg-y-Diocyn, Wales.

Known for its well-preserved cranidial (headshield) and pygidial (tail) features, Niobella homfrayi was part of the early radiation of trilobites following the Cambrian explosion. This piece is a carefully selected fossil displaying clear anatomical features useful for both collectors and academic enthusiasts.

Geological & Palaeontological Details:

  • Fossil Type: Complete or partial trilobite fossil
  • Species: Niobella homfrayi
  • Geological Stage: Tremadoc (Early Ordovician, ~485–477 million years ago)
  • Formation: Likely within the Dolgellau or Lower Llanvirn successions near Trawsfynydd
  • Locality: Carreg-y-Diocyn waterfalls, near Trawsfynydd, Wales
  • Depositional Environment:
  • Outer shelf marine setting
  • Low-energy mudstone and shale environment
  • Often associated with oxygen-deficient bottom waters contributing to exceptional preservation
  • Biozone: May correlate with Shumardia (Conophrys) salopiensis or Dictyonema flabelliforme biozones
  • Morphological Features:
  • Elongated glabella (central head lobe)
  • Broad fixed cheeks with genal spines
  • Well-defined thoracic segments (often fewer than 10)
  • Pygidium semicircular with multiple pleural furrows
  • Family: Nileidae
  • Superfamily: Olenoidea
  • Order: Ptychopariida
  • Formally Described By: Hicks (1875) – based on Welsh localities

Item Specifics:

  • Scale Reference: 1cm cube (see photo for exact sizing)
  • Specimen Integrity: Photographed specimen is the exact one you will receive
  • Documentation: Includes a Certificate of Authenticity verifying its identification, origin, and legitimacy
  • Condition: Natural – no restorations or composites

Why Purchase From Us:

  • Guaranteed 100% Genuine Fossil
  • Individually curated and documented by specialists
  • Ethically sourced from classic and legal fossil localities
  • Ideal for collectors, educators, and display

This is a rare opportunity to acquire a historically and scientifically important trilobite from one of Britain’s classic Ordovician fossil localities. An ideal specimen for any collector focusing on the early Paleozoic or Welsh trilobites.

Additional information

Era

Ordovician
Origin

United Kingdom

Ordovician Information

The Ordovician Period (485–443 million years ago) was a time of marine expansion and biodiversity growth, following the Cambrian Explosion. Warm, shallow seas covered much of the continents, supporting trilobites, brachiopods, corals, and the first true reefs. Jawless fish (early vertebrates) diversified, and the first sea scorpions (eurypterids) became dominant predators. On land, the first primitive plants (moss-like bryophytes) began colonizing damp environments. The climate was initially warm, but by the late Ordovician, a major ice age caused a drastic drop in sea levels, triggering the Ordovician-Silurian mass extinction, which wiped out nearly 85% of marine species. Despite this, the period laid the foundation for the rise of more complex ecosystems in the Silurian.

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