Ludwigia Ammonite Fossil Jurassic Isle of Skye Scotland UK Bearreraig Sandstone Genuine Bajocian Ammonite Fossil Specimen with COA

Description

Fossil Ludwigia Ammonite – Bearreraig Sandstone Formation, Isle of Skye

Offered here is a genuine Ludwigia ammonite fossil discovered within the Bearreraig Sandstone Formation on the Isle of Skye, Inner Hebrides, Scotland. This fossil originates from the Middle Jurassic Bajocian Stage, dating to approximately 170–168 million years ago, when much of northern Scotland was submerged beneath a shallow marine basin.

This specimen represents an authentic fossil ammonite from one of Scotland’s most important Jurassic fossil localities. The fossil has been carefully selected as an attractive collector’s piece, and the photograph in the listing clearly shows the exact fossil you will receive.

The specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming that it is a genuine fossil.

Full measurements and scale can be seen in the listing photographs.

Ludwigia – A Characteristic Middle Jurassic Ammonite

The fossil belongs to the ammonite genus Ludwigia, an extinct group of marine cephalopods that lived during the Middle Jurassic. Ammonites belong to the class Cephalopoda, which also includes modern squid, octopus, and cuttlefish.

Within ammonite classification, Ludwigia is generally placed within the order Ammonitida, a group of rapidly evolving cephalopods that dominated marine environments during the Jurassic and Cretaceous periods.

Ammonites such as Ludwigia possessed a planispiral coiled shell, divided internally into chambers by septa. The animal occupied the outermost chamber while the internal chambers were filled with gas or fluid, allowing the ammonite to regulate buoyancy within the water column.

Typical features of Ludwigia ammonites include:

• Strongly ribbed shell ornamentation

• Distinct whorl structure forming a tightly coiled spiral

• Prominent ribbing extending across the flanks and venter

• Complex suture patterns formed by internal septa

These features make Ludwigia ammonites easily recognisable and highly sought after among Jurassic fossil collectors.

Ammonites as Marine Predators

Ammonites were active marine animals that likely resembled modern nautilus or squid-like cephalopods in appearance. They possessed tentacles used for capturing prey and a powerful beak for feeding.

Their diet likely included:

• Small fish

• Crustaceans

• Marine worms

• Other small invertebrates

Ammonites were also an essential component of the Jurassic marine food chain, serving as prey for larger predators such as marine reptiles and large fish.

Because ammonites evolved rapidly and were widely distributed, their fossils are extremely important in biostratigraphy, allowing geologists to precisely date sedimentary rock layers.

Bearreraig Sandstone Formation

This fossil originates from the Bearreraig Sandstone Formation, a well-known Middle Jurassic geological unit exposed on the Isle of Skye in the Inner Hebrides of Scotland.

These rocks were deposited during the Bajocian Stage of the Middle Jurassic, approximately 170–168 million years ago, within shallow marine environments along the margins of ancient basins.

The Bearreraig Sandstone consists mainly of marine sandstones and siltstones, formed from sediment transported into coastal marine environments by rivers and currents.

The formation preserves a diverse marine fauna including:

• Ammonites such as Ludwigia

• Bivalves and gastropods

• Marine crustaceans

• Various marine invertebrates

These fossils provide important evidence of the Middle Jurassic marine ecosystems that existed around the Scottish landmass.

Jurassic Fossils of the Isle of Skye

The Isle of Skye is internationally recognised as one of the most significant Jurassic fossil localities in the United Kingdom. The island preserves a remarkable sequence of Jurassic sedimentary rocks that document marine and coastal ecosystems from this period.

Many fossil discoveries from Skye have contributed significantly to scientific understanding of Jurassic life in northern Europe. The island’s geology records both marine and terrestrial environments, providing a rich fossil record that includes marine invertebrates, reptiles, and even dinosaur footprints.

Ammonites from the Bearreraig Sandstone are particularly valuable for understanding the biostratigraphy of Middle Jurassic marine sediments in Scotland.

Fossil Preservation

Ammonite shells fossilised when the original aragonite shell became buried in marine sediment. Over millions of years, mineralisation replaced the original shell material or preserved its impression within the surrounding rock.

In sandstone formations such as the Bearreraig Sandstone, ammonites are often preserved as natural moulds or mineralised shells, retaining the distinctive ribbing and coiled structure characteristic of the genus.

These fossils provide a direct record of the marine biodiversity that existed in Jurassic seas.

Authenticity and Collector Information

• Genuine fossil specimen – not a cast or replica

• Fossil Species: Ludwigia sp. Ammonite

• Order: Ammonitida

• Class: Cephalopoda

• Geological Formation: Bearreraig Sandstone Formation

• Age: Middle Jurassic, Bajocian Stage (~170–168 million years old)

• Locality: Isle of Skye, Inner Hebrides, Scotland, United Kingdom

• Includes Certificate of Authenticity lifetime guarantee generic card

• The exact fossil shown in the photographs is the specimen you will receive

This genuine Ludwigia ammonite fossil from the classic Middle Jurassic rocks of the Isle of Skye represents a superb addition to any Jurassic fossil collection, ammonite display, or natural history cabinet, preserving a remarkable example of marine life from Scotland’s ancient Jurassic seas.