Idiohamites ellipticoides Heteromorph Ammonite Albian Kent UK with COA

Description

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

Idiohamites is a distinctive heteromorph ammonite. Unlike the familiar flat, tightly coiled ammonites, heteromorph shells grew through open curves, straight or gently arched shafts and hook-like sections. Idiohamites ellipticoides is valued for this unusual construction, which provides a vivid example of the evolutionary variety achieved by Cretaceous cephalopods. Its morphology makes it an excellent comparison specimen alongside conventionally coiled ammonites and gives the fossil both scientific and display appeal.

The Gault Clay Formation is one of Britain’s classic fossil-bearing marine deposits. At Folkestone, fine dark clay accumulated on a relatively quiet seabed while southeastern England lay beneath the sea. Slow sedimentation preserved a rich fauna that includes ammonites, bivalves, gastropods, crustaceans and other marine invertebrates. The cliffs and foreshore around Folkestone are internationally important for studying Early Cretaceous life, and a fossil with this recorded locality carries strong geological context.

The Albian is the final stage of the Early Cretaceous, spanning approximately 113 to 100.5 million years ago. Sea levels were rising and broad marine environments extended across Europe. Ammonites were cephalopod molluscs related to living squid, cuttlefish and nautiluses. Their chambered shells assisted with buoyancy while the living animal occupied the final body chamber. The unusual shell geometry of heteromorph ammonites may have affected their orientation, movement and feeding in the water, making them especially interesting subjects for palaeobiological study.

Ammonite lineages evolved rapidly, and many species were distributed across wide marine regions. Palaeontologists therefore use them as index fossils to correlate and date sedimentary layers. A specimen with an identified species, formation, stage and locality offers more than decorative interest: it is a physical record of biological evolution and of the geological history of Cretaceous Britain.

Please inspect every photograph carefully because the images form an essential part of the description. You will receive the exact fossil pictured, not 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 an authentic fossil and are shown honestly. For full sizing and proportions, please use the measuring reference visible in the photographs.

This Idiohamites ellipticoides would suit a collector 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 make 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 Idiohamites ellipticoides, records the Gault Clay Formation and Albian age, and gives Folkestone, Kent, UK as the locality. This is a genuine natural fossil with scientific, historic and display interest.