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RARE Fossil Ammonite Tulites subcoronatus – Middle Bathonian, Jurassic – Shepton Montague, Somerset, UK – Alice Purnell Collection
RARE Fossil Ammonite Tulites subcoronatus – Middle Bathonian, Jurassic – Shepton Montague, Somerset, UK – Alice Purnell Collection - Image 2
RARE Fossil Ammonite Tulites subcoronatus – Middle Bathonian, Jurassic – Shepton Montague, Somerset, UK – Alice Purnell Collection - Image 3
RARE Fossil Ammonite Tulites subcoronatus – Middle Bathonian, Jurassic – Shepton Montague, Somerset, UK – Alice Purnell Collection - Image 4

RARE Fossil Ammonite Tulites subcoronatus – Middle Bathonian, Jurassic – Shepton Montague, Somerset, UK – Alice Purnell Collection

£60.00

RARE FOSSIL AMMONITE – Tulites subcoronatus

Middle Bathonian Stage | Jurassic Period (~168–166 million years ago)

Shepton Montague, Somerset, United Kingdom

This listing presents an exceptionally rare and scientifically important specimen of the ammonite species Tulites subcoronatus, discovered in the classic fossil locality of Shepton Montague, Somerset, within strata dating to the Middle Bathonian Stage of the Jurassic Period.

This ammonite was carefully selected from the Alice Purnell Collection, known for its scientifically curated and high-quality specimens. It comes with a Certificate of Authenticity and the actual fossil pictured is the one you will receive. A 1cm scale cube is included in the images — please refer to the photo gallery for full sizing.

GEOLOGICAL & TAXONOMIC DETAILS:

  • Species: Tulites subcoronatus
  • Geological Period: Jurassic
  • Stage: Middle Bathonian (~168–166 Ma)
  • Locality: Shepton Montague, Somerset, UK
  • Formation: Fuller’s Earth Rock Formation
  • Biozone: Morrisiceras morrisi Zone
  • Depositional Environment: Calm, shallow marine shelf environment with muddy limestone and marl sediments
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Morphoceratidae
  • Phylum: Mollusca
  • Class: Cephalopoda

MORPHOLOGY & FEATURES:

Tulites subcoronatus exhibits several distinct and diagnostic features:

  • Moderately evolute coiling with a shallow umbilicus
  • Strong radial ribs, often bifurcating or trifurcating at mid-flank
  • Coronate tubercles or nodes along the ventrolateral shoulders — a defining trait
  • Broad whorl section with ornamentation becoming more prominent toward the aperture
  • Commonly preserved with fine detail in sediment-rich Middle Jurassic deposits of southern England

SIGNIFICANCE:

This genus is valuable for biostratigraphic correlation within the Middle Jurassic and is particularly helpful in identifying the morrisi biozone. Its detailed ornamentation and restricted stratigraphic range make it an important taxon for regional correlation and paleontological research.

The Shepton Montague locality is a well-known Bathonian fossil site and forms part of the classic English Jurassic succession, renowned among collectors and researchers for yielding well-preserved ammonite faunas.

SPECIMEN HIGHLIGHTS:

  • Species: Tulites subcoronatus
  • Geological Age: Middle Bathonian (Jurassic)
  • Locality: Shepton Montague, Somerset, UK
  • Formation: Fuller’s Earth Rock
  • Preservation: Excellent condition with diagnostic features well displayed
  • Authenticity: Certificate of Authenticity included
  • Collection: Alice Purnell
  • Scale: 1cm cube shown – see photo for full sizing

This fossil is ideal for collectors of British Jurassic ammonites, cephalopod enthusiasts, or anyone seeking a scientifically significant and highly displayable piece from a classic UK locality.

(Actual as seen)

Out of stock

SKU: AF1344 Category:

Description

RARE FOSSIL AMMONITE – Tulites subcoronatus

Middle Bathonian Stage | Jurassic Period (~168–166 million years ago)

Shepton Montague, Somerset, United Kingdom

This listing presents an exceptionally rare and scientifically important specimen of the ammonite species Tulites subcoronatus, discovered in the classic fossil locality of Shepton Montague, Somerset, within strata dating to the Middle Bathonian Stage of the Jurassic Period.

This ammonite was carefully selected from the Alice Purnell Collection, known for its scientifically curated and high-quality specimens. It comes with a Certificate of Authenticity and the actual fossil pictured is the one you will receive. A 1cm scale cube is included in the images — please refer to the photo gallery for full sizing.

GEOLOGICAL & TAXONOMIC DETAILS:

  • Species: Tulites subcoronatus
  • Geological Period: Jurassic
  • Stage: Middle Bathonian (~168–166 Ma)
  • Locality: Shepton Montague, Somerset, UK
  • Formation: Fuller’s Earth Rock Formation
  • Biozone: Morrisiceras morrisi Zone
  • Depositional Environment: Calm, shallow marine shelf environment with muddy limestone and marl sediments
  • Order: Ammonitida
  • Superfamily: Stephanoceratoidea
  • Family: Morphoceratidae
  • Phylum: Mollusca
  • Class: Cephalopoda

MORPHOLOGY & FEATURES:

Tulites subcoronatus exhibits several distinct and diagnostic features:

  • Moderately evolute coiling with a shallow umbilicus
  • Strong radial ribs, often bifurcating or trifurcating at mid-flank
  • Coronate tubercles or nodes along the ventrolateral shoulders — a defining trait
  • Broad whorl section with ornamentation becoming more prominent toward the aperture
  • Commonly preserved with fine detail in sediment-rich Middle Jurassic deposits of southern England

SIGNIFICANCE:

This genus is valuable for biostratigraphic correlation within the Middle Jurassic and is particularly helpful in identifying the morrisi biozone. Its detailed ornamentation and restricted stratigraphic range make it an important taxon for regional correlation and paleontological research.

The Shepton Montague locality is a well-known Bathonian fossil site and forms part of the classic English Jurassic succession, renowned among collectors and researchers for yielding well-preserved ammonite faunas.

SPECIMEN HIGHLIGHTS:

  • Species: Tulites subcoronatus
  • Geological Age: Middle Bathonian (Jurassic)
  • Locality: Shepton Montague, Somerset, UK
  • Formation: Fuller’s Earth Rock
  • Preservation: Excellent condition with diagnostic features well displayed
  • Authenticity: Certificate of Authenticity included
  • Collection: Alice Purnell
  • Scale: 1cm cube shown – see photo for full sizing

This fossil is ideal for collectors of British Jurassic ammonites, cephalopod enthusiasts, or anyone seeking a scientifically significant and highly displayable piece from a classic UK locality.

Additional information

Era

Jurassic
Origin

United Kingdom

Jurassic Information

The Jurassic Period (201–145 million years ago) was the golden age of dinosaurs, with iconic species like Brachiosaurus, Stegosaurus, and Allosaurus dominating the land. It was a time of warm, humid climates, with high sea levels that created vast shallow seas, supporting abundant marine reptiles, ammonites, and early coral reefs. The first birds, such as Archaeopteryx, evolved from small theropod dinosaurs, while early mammals remained small and nocturnal. Lush forests of cycads, conifers, and ferns covered the land, providing food for giant herbivores. The breakup of the supercontinent Pangaea accelerated, shaping Earth's geography and setting the stage for the diverse ecosystems of the Cretaceous.

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