Schloenbachia varians Juvenile Ammonite Fossil Cenomanian Sussex with COA

Description

This listing is for the exact genuine ammonite fossil shown in the photographs: a specimen of juvenile Schloenbachia varians from the Grey Chalk at Glynde, East Sussex, United Kingdom. It dates from the Cenomanian stage of the Late 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.

juvenile Schloenbachia varians is a distinctive ammonite from the Cretaceous marine record of southern England. Its coiled shell belongs to an extinct group of cephalopod molluscs related to living squid, cuttlefish and nautiluses. Ammonite shells were divided internally into chambers. The animal occupied the final body chamber, while the earlier chambers helped regulate buoyancy. Shell form, ribbing and other morphological features are important to palaeontologists when identifying species and comparing fossils between localities.

The specimen comes from the Grey Chalk at Glynde in East Sussex. These deposits formed when much of southern Britain lay beneath a warm, relatively shallow sea. Fine carbonate sediment, clay and the remains of microscopic organisms settled on the seabed and gradually accumulated. Burial and geological change transformed this sediment into the chalk succession that now preserves ammonites and many other marine fossils. Glynde is a respected Sussex locality, and a specimen with this recorded origin carries clear geological context.

The Cenomanian is the earliest stage of the Late Cretaceous, spanning approximately 100.5 to 93.9 million years ago. Sea levels were high, and broad marine environments covered large areas of Europe. These waters supported ammonites, bivalves, echinoids and many other organisms. Fossils preserved in the chalk provide direct evidence of these ancient ecosystems and of the profound changes in geography that Britain has experienced through geological time.

Ammonite lineages evolved rapidly and many species were widely distributed. Palaeontologists therefore use them as index fossils to correlate and date marine rock layers. A fossil with an identified species, stratigraphic unit, stage and locality offers more than decorative interest: it is a physical record of biological evolution and the history of an ancient sea.

Please inspect every photograph carefully, as 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 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 listing is for the exact genuine juvenile ammonite fossil shown in the photographs: a specimen of Schloenbachia varians would suit a collector of British ammonites, Chalk fossils, Cenomanian cephalopods or Late Cretaceous life. It is also an effective educational specimen for explaining ammonite biology, fossil preservation and marine geology. 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 juvenile Schloenbachia varians, records the Grey Chalk and Cenomanian age, and gives Glynde, East Sussex, UK as the locality. This is a genuine natural fossil with scientific, historic and display interest.