RARE 8" Puzosia mayoriana dibley Fossil Chalk Ammonite | Turonian Cretaceous | Southerham UK | Alice Purnell Collection

This listing presents a RARE 8-inch Fossil Ammonite, identified as Puzosia mayoriana dibley, from the Turonian Stage of the Cretaceous Period. This spectacular fossil was discovered at Southerham, Sussex, United Kingdom, and originates from the esteemed Alice Purnell Collection, known for its premium, scientifically documented specimens.

Geological Details:

• Locality: Southerham, Sussex, United Kingdom
• Geological Period: Cretaceous.
• Geological Stage: Turonian (~93.9 to 89.8 million years ago)
• Depositional Environment: Calm, offshore chalk sea environment with fine-grained calcareous sedimentation
• Formation: Upper Chalk (Lower to Middle Turonian strata of southern England)

Paleontological Context: Puzosia is a genus within the Desmoceratidae Family, featuring strongly ribbed, planispiral ammonites. Puzosia mayoriana is well-represented in Turonian sequences, and the variety dibley is a regionally significant form. It is often used in biostratigraphic correlation and paleoenvironmental reconstruction.

• Order: Ammonitida
• Superfamily: Desmoceratoidea
• Family: Desmoceratidae
• Genus: Puzosia
• Species: mayoriana
• Variety/Subspecies: dibley
• Biozone: Turonian – potentially within the Mammites nodosoides or Collignoniceras woollgari biozones depending on stratigraphic level
• Formally Described by: Wright & Wright (subspecies attribution)

Morphological Features:

• Large, 8-inch shell with strongly developed radial ribs
• Planispiral coiling with involute form
• Rounded venter with minimal tuberculation
• Chalk matrix preservation with cream to white tones, typical of English Turonian beds

Notable Characteristics:

• Rare UK ammonite specimen of notable size and preservation
• Ideal for display, educational use, or collection
• From the prestigious Alice Purnell Collection, ensuring authenticity and traceability

Authenticity & Presentation:

• 100% genuine fossil, not a replica or reconstruction
• Supplied with a Certificate of Authenticity
• The photo shows the exact specimen you will receive
• Scale cube = 1cm – see photo for size reference

Additional Notes: This is an extraordinary ammonite fossil representing both scientific significance and aesthetic appeal. Puzosia mayoriana dibley from the Turonian of Southerham is seldom seen in the commercial fossil market, especially in this size and condition. An outstanding addition to any serious fossil collection or paleontological display.

All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity.