Fossil Bivalve Lyropecten Chalk Marl Cretaceous Southernham Quarry Pit East Sussex UK

Description

Genuine Fossil Bivalve – Lyropecten

This is an authentic fossil bivalve, Lyropecten, originating from the Chalk Marl deposits of the Cretaceous period at Southernham Quarry Pit, East Sussex, UK. Carefully chosen for its preservation and scientific interest, this specimen represents one of the elegant pectinid bivalves that once thrived in the warm, shallow seas of the Cretaceous. The exact fossil pictured is the one you will receive, accompanied by a Certificate of Authenticity, guaranteeing its genuine nature and provenance.

Geological Setting

The fossil comes from the Chalk Marl Formation, deposited during the Cretaceous period, approximately 145–66 million years ago. The Chalk Marl represents an environment of fine-grained calcareous sediments, laid down in a shallow, warm epicontinental sea that once covered much of southern England.

Southernham Quarry Pit, East Sussex, is a renowned fossil locality, well known for yielding high-quality specimens of marine organisms including echinoids, ammonites, inoceramids, and bivalves. The Chalk Marl provides exceptional preservation conditions, capturing fine details of shell ornamentation that make fossils from this locality highly prized by collectors and researchers alike.

Taxonomy and Classification

• Kingdom: Animalia
• Phylum: Mollusca
• Class: Bivalvia
• Order: Pectinida
• Superfamily: Pectinoidea
• Family: Pectinidae
• Genus: Lyropecten

Members of the genus Lyropecten are part of the scallop family, notable for their ribbed, often radially ornamented shells. Their morphology provides clues about their life habits and the marine environments they inhabited.

Morphological Features

This Lyropecten specimen displays the distinctive features that make the genus so recognisable and attractive:

• Strong radial ribs running from the hinge to the shell margin.
• Fan-shaped form, typical of scallops, designed to streamline water flow.
• Inequivalve nature, with subtle differences between the two shell valves.
• Fine growth lines, marking stages of shell deposition throughout the animal’s life.

These features reflect both the evolutionary adaptations of scallops to their environment and the aesthetic appeal that makes fossil pectinids popular display specimens.

Palaeoecological Significance

Like modern scallops, Lyropecten was likely a free-living or weakly attached benthic organism, inhabiting shallow, nutrient-rich seas. Its ribbed shell not only offered strength but may have aided in stabilisation on soft substrates. The fossil record of scallops provides valuable insights into marine biodiversity, predator-prey interactions, and environmental changes during the Cretaceous.

The Cretaceous seas were dynamic ecosystems, and scallops such as Lyropecten were important components of the benthic community. Their abundance and distribution make them useful for reconstructing palaeoenvironments and for biostratigraphic studies.

Collector and Scientific Value

This fossil is not only a beautiful natural specimen but also a scientifically valuable piece. For collectors, Lyropecten is highly desirable due to its aesthetic ribbed shell and its association with one of Britain’s classic fossil localities. For researchers, it represents an important taxon for understanding the evolutionary history of bivalves in the Cretaceous.

Owning this specimen allows you to hold a genuine piece of Earth’s history, dating back over 80 million years. Its preservation makes it ideal for study, teaching, or as a unique natural display piece.

Provenance and Authenticity

Collected from Southernham Quarry Pit, East Sussex, UK, this specimen comes directly from one of the UK’s most significant Cretaceous fossil localities. Supplied with a Certificate of Authenticity, it is guaranteed to be a genuine, unrestored fossil, ensuring full confidence for both collectors and enthusiasts.

This fossil bivalve Lyropecten embodies both the elegance of natural history and the scientific importance of palaeontology. With its beautifully ribbed shell preserved in Chalk Marl, it provides a direct connection to the ancient seas of the Cretaceous and a fascinating addition to any collection.