Hamites gibbosus Heteromorph Ammonite Fossil Albian Kent UK with COA

Description

This listing is for the exact genuine fossil shown in the photographs: a Hamites gibbosus heteromorph ammonite from the Gault Clay Formation at Folkestone, Kent, United Kingdom. It dates from the Middle Albian stage of the Early Cretaceous Period and is supplied with our lifetime Certificate of Authenticity. The certificate records its identification, geological unit, age and locality, providing a lasting reference for your collection.

Hamites is one of the classic heteromorph ammonites, a remarkable group whose shells did not retain the familiar flat, tightly coiled form seen in most ammonites. Species of Hamites developed open, curved or hook-like shell sections, producing an elegant form that is immediately recognisable. Hamites gibbosus is a collectable representative of this specialised Cretaceous lineage. Its shell morphology offers a vivid example of the evolutionary diversity achieved by ammonites and makes it especially interesting for comparative study alongside normally coiled species.

The fossil comes from the Gault Clay Formation, one of Britain’s best-known fossil-bearing marine deposits. At Folkestone, fine dark clay accumulated on a relatively quiet seabed while southeastern England lay beneath the sea. Slow deposition helped preserve a rich fauna that includes ammonites, bivalves, gastropods, crustaceans and other invertebrates. The cliffs and foreshore around Folkestone have consequently become internationally important for the study of Early Cretaceous marine life. A specimen with this recorded locality carries a strong and well-established geological context.

The Middle Albian belongs to the later part of the Early Cretaceous, roughly around 110 to 105 million years ago. Sea levels were rising and broad marine environments extended across parts of Europe. Ammonites were cephalopod molluscs related to living squid, cuttlefish and nautiluses. The chambered shell helped the animal regulate buoyancy while the living body occupied the final chamber. The unusual shell shapes of heteromorph ammonites may have affected orientation and movement in the water, making them valuable subjects for palaeobiological research.

Ammonite species evolved rapidly and many were distributed over wide geographic areas. Palaeontologists therefore use them as index fossils to correlate marine rock layers and determine relative geological ages. A specimen with an identified species, formation, stage and locality is more than a decorative object: it is a physical record of biological evolution and of the changing geography of Cretaceous Britain.

Please inspect every photograph carefully, as the images form an essential part of the description. You will receive the exact fossil pictured rather than a stock example or a similar substitute. Natural matrix, surface texture, colour variation, incomplete shell areas, mineral deposits and small imperfections are normal characteristics of a genuine fossil and are shown honestly. For full sizing and proportions, please use the measuring reference visible in the photographs.

This Hamites gibbosus would make an excellent addition to a collection of British ammonites, Gault Clay fossils, heteromorph cephalopods or Early Cretaceous life. Its unusual shape also makes it an effective educational specimen for explaining ammonite growth, adaptation and diversity. It would be a thoughtful gift for a fossil collector, geology student or natural history enthusiast.

The specimen will be packed carefully for dispatch. Handle it gently and keep it in a stable, dry display environment. The included generic lifetime Certificate of Authenticity identifies it as Hamites gibbosus, records the Gault Clay Formation and Middle Albian age, and gives Folkestone, Kent, UK as its locality. This is a genuine natural fossil with scientific, historic and display interest.