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Orthoceras Fossil Orthocone | Silurian Wenlock Limestone UK | Wrens Nest Dudley | Genuine Specimen with COA

Orthoceras Fossil Orthocone | Silurian Wenlock Limestone UK | Wrens Nest Dudley | Genuine Specimen with COA

Original price was: £42.00.Current price is: £37.80.

Own a genuine piece of Britain’s ancient marine heritage with this authentic Orthoceras fossil orthocone, discovered in the world-famous Wrens Nest site, part of the Wenlock Limestone Formation from the Wenlockian stage of the Silurian period. This fossil represents an extinct nautiloid cephalopod that once roamed the tropical seas covering the West Midlands over 420 million years ago.

Fossil Type: Orthocone Cephalopod

Genus: Orthoceras (in a broad sense; UK examples may await further taxonomic clarification)

Geological Period: Silurian (~443 to 419 million years ago)

Geological Stage: Wenlockian (specifically Wenlock Epoch, ~433 to 427 million years ago)

Formation: Wenlock Limestone Formation

Location: Wrens Nest, Dudley, West Midlands, UK

Scale Rule: Squares/Cube = 1cm (See photo for full sizing)

Specimen: The actual item shown is the specimen you will receive

Authenticity: All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity

Geological and Paleontological Information

Orthoceras is an extinct genus of straight-shelled nautiloid cephalopods, commonly found in Silurian marine limestones. Wrens Nest is a Site of Special Scientific Interest (SSSI), renowned for its rich and exceptionally preserved Silurian fossil fauna, especially trilobites, brachiopods, corals, and cephalopods like this specimen.

  • Phylum: Mollusca
  • Class: Cephalopoda
  • Order: Orthocerida
  • Family: Orthoceratidae
  • Superfamily: Orthocerataceae
  • Depositional Environment: Shallow warm marine shelf; limestone deposition under low-energy conditions conducive to fossil preservation
  • Morphological Features: Long, conical shell (orthocone) composed of multiple internal chambers (phragmocone) separated by curved septa; central or subcentral siphuncle used for buoyancy regulation; often displays subtle growth lines or ribbing on external shell surface
  • Notable: Wrens Nest is one of the most important Silurian fossil sites in the world. Cephalopods like Orthoceras provide key insights into early marine ecosystems and cephalopod evolution
  • Biozone: Likely correlated with graptolite or brachiopod biozones within the Wenlock Limestone, though exact placement requires detailed stratigraphy
  • Identifier: Early forms of Orthoceras were formally named in the 18th century; UK examples from Dudley may not always be classified to species level without further preparation

Why This Fossil is Special

This fossil is more than a geological curiosity—it’s part of a site that has contributed greatly to the development of geological science. Wrens Nest was instrumental in the early study of stratigraphy and paleontology. The well-preserved phragmocone and historical provenance make this piece ideal for collectors and educators alike.

Why Buy From Us?

  • 100% genuine fossil with Certificate of Authenticity
  • Exact specimen in photo is what you will receive
  • Carefully selected from scientifically significant UK sites
  • Ideal for display, teaching, or private collections

Bring home a remarkable relic from the ancient Silurian seas of Britain with this Orthoceras fossil orthocone from Wrens Nest, Dudley — a stunning addition to any fossil collection or natural history display.

(Actual as seen)

Only 1 left in stock

SKU: UF3370 Category:

Description

Own a genuine piece of Britain’s ancient marine heritage with this authentic Orthoceras fossil orthocone, discovered in the world-famous Wrens Nest site, part of the Wenlock Limestone Formation from the Wenlockian stage of the Silurian period. This fossil represents an extinct nautiloid cephalopod that once roamed the tropical seas covering the West Midlands over 420 million years ago.

Fossil Type: Orthocone Cephalopod

Genus: Orthoceras (in a broad sense; UK examples may await further taxonomic clarification)

Geological Period: Silurian (~443 to 419 million years ago)

Geological Stage: Wenlockian (specifically Wenlock Epoch, ~433 to 427 million years ago)

Formation: Wenlock Limestone Formation

Location: Wrens Nest, Dudley, West Midlands, UK

Scale Rule: Squares/Cube = 1cm (See photo for full sizing)

Specimen: The actual item shown is the specimen you will receive

Authenticity: All of our fossils are 100% genuine specimens and come with a Certificate of Authenticity

Geological and Paleontological Information

Orthoceras is an extinct genus of straight-shelled nautiloid cephalopods, commonly found in Silurian marine limestones. Wrens Nest is a Site of Special Scientific Interest (SSSI), renowned for its rich and exceptionally preserved Silurian fossil fauna, especially trilobites, brachiopods, corals, and cephalopods like this specimen.

  • Phylum: Mollusca
  • Class: Cephalopoda
  • Order: Orthocerida
  • Family: Orthoceratidae
  • Superfamily: Orthocerataceae
  • Depositional Environment: Shallow warm marine shelf; limestone deposition under low-energy conditions conducive to fossil preservation
  • Morphological Features: Long, conical shell (orthocone) composed of multiple internal chambers (phragmocone) separated by curved septa; central or subcentral siphuncle used for buoyancy regulation; often displays subtle growth lines or ribbing on external shell surface
  • Notable: Wrens Nest is one of the most important Silurian fossil sites in the world. Cephalopods like Orthoceras provide key insights into early marine ecosystems and cephalopod evolution
  • Biozone: Likely correlated with graptolite or brachiopod biozones within the Wenlock Limestone, though exact placement requires detailed stratigraphy
  • Identifier: Early forms of Orthoceras were formally named in the 18th century; UK examples from Dudley may not always be classified to species level without further preparation

Why This Fossil is Special

This fossil is more than a geological curiosity—it’s part of a site that has contributed greatly to the development of geological science. Wrens Nest was instrumental in the early study of stratigraphy and paleontology. The well-preserved phragmocone and historical provenance make this piece ideal for collectors and educators alike.

Why Buy From Us?

  • 100% genuine fossil with Certificate of Authenticity
  • Exact specimen in photo is what you will receive
  • Carefully selected from scientifically significant UK sites
  • Ideal for display, teaching, or private collections

Bring home a remarkable relic from the ancient Silurian seas of Britain with this Orthoceras fossil orthocone from Wrens Nest, Dudley — a stunning addition to any fossil collection or natural history display.

Additional information

Era

Silurian
Origin

United Kingdom

Silurian Information

The Silurian Period (443–419 million years ago) was a time of climate stabilization following the end-Ordovician mass extinction. The climate became warmer, and sea levels rose, leading to the expansion of shallow marine ecosystems. Coral reefs flourished, and new marine predators like Eurypterids (sea scorpions) and early jawed fish emerged. One of the most significant events was the colonization of land—early vascular plants such as Cooksonia appeared, along with the first arthropods to venture onto land. These evolutionary advances set the stage for the more complex terrestrial ecosystems that developed in the Devonian.

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