Description
Fossil Identification
This listing features a rare TETRAGONITES EPIGONUM heteromorph fossil ammonite, identified from the Cretaceous Santonian stage. The specimen is associated with the Trent River Formation on Vancouver Island, Canada, making it an appealing addition for ammonite collectors, Cretaceous fossil enthusiasts and anyone interested in the paleontology of British Columbia.
Tetragonites epigonum is identified here as a heteromorph ammonite. Ammonites were extinct marine cephalopods related to modern nautiluses, squids and cuttlefish. Their coiled shells are among the most recognisable fossils in the geological record, while heteromorph ammonites are especially valued by collectors for their distinctive shell forms and evolutionary significance. The identification supplied for this specimen is retained exactly as TETRAGONITES EPIGONUM.
Geological Context
The specimen is attributed to the Santonian, a stage within the Late Cretaceous. Its listed geological association is the Trent River Formation, with location details supplied as Santon, Trent River, Vancouver Island, Canada. This combination of fossil identification, geological age and formation provides useful context for display, research and collection cataloguing.
The Cretaceous Period is well known for its diverse marine fossil record. Ammonites are important to paleontologists because their rapidly changing shell forms can assist with studying evolutionary patterns and relative geological age. A Santonian ammonite from the Trent River Formation therefore offers both visual appeal and a direct connection to the marine environments represented in the Cretaceous fossil record of Vancouver Island.
Collection Details
From the Alice Purnell Collection
This specimen is suited to private fossil collections, educational displays, natural history cabinets and geology-focused interiors. Its named identification and geological context make it particularly suitable for collectors who value documented ammonites and fossils connected with a specific formation and stage.
Authenticity and Photography
This Fossil is a genuine specimen and Includes a Certificate of Authenticity lifetime guarantee generic card.
The photograph shows the actual specimen you will receive.
Full sizing is shown in the photographs.
Please review the photographs carefully for the specimen’s visible form and presentation. The supplied identification, Santonian age, Trent River Formation association and Vancouver Island location make this a focused collector piece for anyone specialising in ammonites, heteromorph fossils, Cretaceous palaeontology or Canadian geological material.







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