Carcharocles angustidens Shark Tooth Fossil Oligocene South Carolina USA Ashley Formation Giant Megalodon Ancestor Tooth Specimen with COA

Description

Carcharocles angustidens Shark Tooth Fossil – Ashley Formation, South Carolina

Presented here is a genuine Carcharocles angustidens shark tooth fossil, recovered from the Ashley Formation near Summerville in Dorchester County, South Carolina, USA. This impressive fossil dates to the Oligocene Epoch, approximately 28–23 million years ago, when warm shallow seas covered much of the southeastern United States.

Carcharocles angustidens is one of the most famous prehistoric sharks and is widely regarded as an evolutionary ancestor of the giant Megalodon shark. Fossil teeth from this species are highly sought after by collectors due to their size, distinctive serrations, and importance in the evolutionary lineage of giant predatory sharks.

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

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

Carcharocles angustidens – The Broad-Toothed Giant Shark

The prehistoric shark Carcharocles angustidens was one of the largest marine predators of the Oligocene seas. It belongs to the family Otodontidae, a group of giant predatory sharks that includes the famous Otodus megalodon.

Taxonomic classification includes:

• Class: Chondrichthyes

• Order: Lamniformes

• Family: Otodontidae

• Genus: Carcharocles

• Species: Carcharocles angustidens

This species is sometimes referred to as the “broad-toothed mako shark”, reflecting its evolutionary relationship to modern lamniform sharks.

Carcharocles angustidens likely reached lengths of 8–10 metres (26–33 feet) and occupied the top of the marine food chain during the Oligocene.

The species is particularly significant because it represents a key transitional form in the evolutionary lineage leading to Carcharocles megalodon, the largest shark known to have lived.

Tooth Morphology and Identification

Teeth of Carcharocles angustidens are highly distinctive and are among the most recognisable shark fossils in the world.

Typical features include:

• Large triangular crown

• Prominent serrated cutting edges

• Broad robust root structure

• Curved blade adapted for slicing prey

• Lateral cusplets on some specimens near the base of the crown

The serrated edges functioned as efficient cutting tools capable of slicing through the flesh and bone of marine mammals, large fish, and other marine animals.

These teeth were continually replaced throughout the shark’s life. Like modern sharks, individuals shed thousands of teeth during their lifetime, which explains why fossil shark teeth are relatively common compared with other skeletal remains.

Ashley Formation Geological Context

The fossil originates from the Ashley Formation, a marine sedimentary unit exposed in parts of South Carolina, particularly around the Summerville region.

The Ashley Formation dates to the Oligocene Epoch, roughly 28–23 million years ago.

These sediments formed in shallow marine environments along the Atlantic Coastal Plain, where fine sands and silts accumulated on the sea floor.

The formation is famous for preserving a diverse marine fossil assemblage including:

• Giant shark teeth such as Carcharocles angustidens

• Early whales and marine mammals

• Bony fish and rays

• Marine reptiles and turtles

• Molluscs and other marine invertebrates

The fossil-rich sediments are often recovered from phosphate-bearing deposits within the region.

Oligocene Marine Ecosystem of the Atlantic Coastal Plain

During the Oligocene Epoch, the southeastern United States was submerged beneath warm shallow seas teeming with marine life. The Atlantic Coastal Plain supported a rich ecosystem that included sharks, early whales, dolphins, sea turtles, and numerous fish species.

Large predatory sharks such as Carcharocles angustidens occupied the top of the food chain and likely preyed upon marine mammals and large fish.

The evolutionary radiation of marine mammals during the Oligocene provided an abundant food source for large predatory sharks, contributing to the success of the Otodontidae lineage.

Fossilisation and Preservation

Shark teeth fossilise exceptionally well because they are composed of dense enamel and dentine, materials that resist decay and survive long after the rest of the skeleton has decomposed.

After being shed or lost during feeding, the tooth settled onto the seabed where it became buried within sediment. Over millions of years, mineralisation preserved the tooth in the surrounding rock layers.

Many fossil shark teeth from the Ashley Formation display excellent preservation of serrations, root structure, and enamel surfaces, making them highly prized among collectors.

Authenticity and Collector Information

• Genuine fossil specimen – not a cast or replica

• Fossil Type: Carcharocles angustidens Shark Tooth

• Order: Lamniformes

• Family: Otodontidae

• Geological Formation: Ashley Formation

• Age: Oligocene Epoch (~28–23 million years old)

• Locality: Summerville, Dorchester County, South Carolina, USA

• Includes Certificate of Authenticity lifetime guarantee generic card

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

This genuine Carcharocles angustidens shark tooth fossil from the Ashley Formation of South Carolina represents a striking addition to any prehistoric shark collection, fossil display, or natural history cabinet, preserving a powerful relic of one of the ocean’s most formidable predators from the Oligocene seas.