Galeocerdo aduncus Shark Tooth Fossil Miocene North Carolina USA Pungo River Formation Tiger Shark Tooth Specimen with COA

Description

Galeocerdo aduncus Shark Tooth Fossil – Pungo River Formation, North Carolina

Presented here is a genuine Galeocerdo aduncus shark tooth fossil recovered from the Pungo River Formation near the Pungo River in North Carolina, United States. This specimen dates to the Miocene Epoch, approximately 23–5 million years ago, when warm shallow seas covered much of the Atlantic Coastal Plain of North America.

Galeocerdo aduncus is an extinct species closely related to the modern tiger shark (Galeocerdo cuvier) and represents an important member of the Miocene marine predator community. Fossil teeth from this species are particularly desirable among collectors due to their distinctive serrations, curved blade, and their relationship to one of today’s most recognisable shark species.

This fossil has been carefully selected as a quality collector’s specimen, and the listing photographs clearly show the exact tooth you will receive. The specimen includes a Certificate of Authenticity lifetime guarantee generic card, confirming the fossil is genuine.

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

Galeocerdo aduncus – An Ancient Tiger Shark

The species Galeocerdo aduncus belongs to the same genus as the modern tiger shark, one of the most formidable predators in modern oceans. Fossils indicate that this lineage has existed for tens of millions of years with relatively similar tooth morphology.

Taxonomic classification includes:

• Class: Chondrichthyes

• Order: Carcharhiniformes

• Family: Carcharhinidae

• Genus: Galeocerdo

• Species: Galeocerdo aduncus

This extinct species lived during the Miocene Epoch, a time when shark diversity was extremely high and large marine predators dominated coastal ecosystems.

Like its modern relatives, Galeocerdo aduncus was likely a powerful predator capable of consuming a wide range of prey including fish, rays, marine mammals, turtles, and seabirds.

Tooth Morphology and Diagnostic Characteristics

The teeth of Galeocerdo aduncus are highly distinctive and are adapted for slicing through tough prey.

Key features include:

• Broad triangular crown

• Strongly curved cutting edge

• Serrated margins designed for cutting flesh

• Distinct notch along the crown margin

• Robust root supporting the crown

These serrated teeth functioned like biological cutting blades, allowing the shark to slice through bone, cartilage, and flesh with ease.

The shape of the crown and the pattern of serrations are diagnostic features used by palaeontologists to identify tiger shark species within the fossil record.

Sharks continuously replace their teeth throughout life, meaning an individual shark could shed thousands of teeth during its lifetime, many of which later became fossilised.

Pungo River Formation Geological Context

This fossil originates from the Pungo River Formation, an important Miocene sedimentary unit within the Atlantic Coastal Plain of North Carolina.

The formation dates primarily to the Middle Miocene, approximately 16–11 million years ago, and is well known for its extremely rich marine fossil deposits.

The Pungo River Formation consists mainly of:

• Phosphatic sands

• Silts and clays

• Shell-rich marine sediments

These deposits formed in shallow marine environments along the Atlantic margin, where nutrient-rich waters supported abundant marine life.

The fossil assemblage from the Pungo River Formation includes:

• Numerous shark and ray species

• Marine mammals such as early whales and dolphins

• Fish and sea turtles

• Molluscs and marine invertebrates

The phosphate-rich sediments have preserved an extraordinary diversity of marine fossils.

Miocene Seas of the Atlantic Coastal Plain

During the Miocene Epoch, global climates were generally warmer and sea levels were higher than today. Large portions of the southeastern United States were covered by warm shallow seas connected to the Atlantic Ocean.

These waters supported diverse ecosystems with large populations of fish, marine mammals, and sharks.

Predatory sharks such as Galeocerdo aduncus occupied an important ecological role within these environments, helping regulate marine food chains.

The fossil record preserved in formations like the Pungo River provides important insights into the evolution of modern shark lineages and Miocene marine ecosystems.

Fossilisation and Preservation

Shark teeth fossilise extremely well because they are composed of dense enamel and dentine, materials that resist decomposition and remain intact long after the rest of the skeleton has disappeared.

After being shed during feeding or natural tooth replacement, the teeth settled onto the seabed where they became buried within marine sediments. Over millions of years, mineralisation preserved the teeth within the rock layers.

Many shark teeth recovered from the Pungo River Formation display excellent preservation of serrations, crown shape, and root structure, making them highly desirable specimens for collectors.

Authenticity and Collector Information

• Genuine fossil specimen – not a cast or replica

• Fossil Type: Galeocerdo aduncus Shark Tooth

• Order: Carcharhiniformes

• Family: Carcharhinidae

• Geological Formation: Pungo River Formation

• Age: Miocene Epoch (~23–5 million years old)

• Locality: Pungo River, North Carolina, United States

• Includes Certificate of Authenticity lifetime guarantee generic card

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

This genuine Galeocerdo aduncus shark tooth fossil from the Pungo River Formation of North Carolina makes an excellent addition to any prehistoric shark collection, Miocene fossil display, or natural history cabinet, preserving a striking relic of ancient marine predators from the Miocene seas of the Atlantic Coastal Plain.