Sponge Fossil Seaford Chalk Formation Upper Cretaceous Lewes Sussex UK Display. Genuine Southerham Grey Pit Specimen with COA

Description

Fossil Sponge from the Seaford Chalk Formation

Upper Cretaceous Fossil from East Sussex

This genuine fossil sponge comes from Southerham Grey Pit near Lewes in East Sussex, UK. It was collected from the Seaford Chalk Formation and dates to the Upper Cretaceous Period. With a documented formation and locality, it is an appealing natural history specimen for fossil collectors, geology students, chalk fossil enthusiasts and anyone building a cabinet of authentic prehistoric objects.

The photographs show the actual fossil you will receive. Its individual form, colour, chalk matrix, preservation and visible surface features belong to this exact specimen, so both images should be examined carefully when considering its character and condition.

The Fossil Sponge

Sponges are among the longest-established groups of multicellular animals. They are aquatic organisms with bodies structured around networks of pores, canals and openings through which water is moved for feeding and respiration. In fossil examples, the soft tissues are not normally preserved, but mineralised supporting structures, body outlines, surface textures or impressions can remain within the surrounding sediment.

This specimen is identified at the broad level of fossil sponge. No narrower genus or species is asserted. Features visible in a sponge fossil can vary according to the original skeletal structure, burial conditions, mineral replacement, weathering and the way the chalk matrix has broken or been prepared. Please use the photographs as the definitive visual guide to the morphology and preservation shown by this individual piece.

Seaford Chalk Formation Geology

The Seaford Chalk Formation forms part of the Upper Cretaceous chalk succession of southern England. Chalk accumulated in a marine setting from immense quantities of microscopic calcareous material settling through the water and building up on the sea floor over long periods. Those sediments later compacted into the pale limestone now known as chalk.

The chalk seas supported varied marine life. Fossils preserved in chalk provide evidence of organisms that lived on, within or above the ancient sea floor. A fossil sponge from this formation offers a direct connection to that offshore ecosystem and to the geological processes that turned marine sediment into rock.

The stated locality is Southerham Grey Pit, Lewes, East Sussex, UK. This gives the specimen precise geographical context alongside its Seaford Chalk Formation origin and Upper Cretaceous age. Formation-level information is especially useful for collectors who arrange fossils by stratigraphy, locality or palaeoenvironment.

Natural Preservation and Matrix

A fossil is a natural geological object rather than a manufactured ornament. Variations in surface texture, incomplete areas, attached chalk, mineral deposits and differences in colour may reflect the organism’s original structure, burial, fossilisation, later weathering and preparation. These characteristics are part of the specimen’s geological history and help make every genuine fossil unique.

The relationship between the sponge remains and the surrounding chalk is an important part of the piece. Matrix can preserve context, support delicate fossil material and show how the specimen occurred within the host rock.

Display, Study and Collecting

This Seaford Chalk fossil sponge is suitable for a fossil cabinet, natural history collection, classroom, study set, office or geology-themed display. It may also make a thoughtful gift for a fossil collector, student, amateur palaeontologist or admirer of British geological heritage.

For full sizing, please refer to the photographs. The pictured fossil is the actual carefully chosen specimen supplied, not a representative example. Both images provide the best guide to its dimensions, matrix, surface detail and overall preservation.

Authenticity and Certificate

This is a genuine fossil specimen. It includes a generic Certificate of Authenticity lifetime guarantee card, providing an enduring authenticity assurance for the collector. The card will accompany the fossil.

You will receive one fossil sponge from the Upper Cretaceous Seaford Chalk Formation at Southerham Grey Pit, Lewes, East Sussex, UK, together with its Certificate of Authenticity card. The exact fossil shown in the listing photographs is the specimen that will be sent.