Description
Carcharocles angustidens Shark Tooth – Ashley Formation, South Carolina
Presented here is a genuine Carcharocles angustidens shark tooth fossil discovered in the Ashley Formation near Summerville in Dorchester County, South Carolina, USA. This impressive prehistoric shark tooth dates to the Oligocene Epoch, approximately 28–23 million years ago, when warm shallow seas covered much of the Atlantic Coastal Plain of North America.
Carcharocles angustidens is widely regarded as one of the direct evolutionary ancestors of the famous giant shark Otodus megalodon, making this species an important transitional form in the evolutionary history of large predatory sharks. Fossil teeth from this species are highly sought after by collectors due to their impressive size, distinctive serrations, and their place in the lineage of the largest sharks ever to inhabit Earth’s oceans.
The fossil offered here has been carefully selected as a quality collector specimen, and the listing photographs clearly 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 Prehistoric Shark
The prehistoric shark Carcharocles angustidens belongs to the family Otodontidae, a lineage of giant predatory sharks that dominated marine ecosystems during the Paleogene and Neogene periods.
Taxonomic classification includes:
• Class: Chondrichthyes
• Order: Lamniformes
• Family: Otodontidae
• Genus: Carcharocles
• Species: Carcharocles angustidens
This species is often referred to as the broad-toothed mako shark due to its evolutionary relationship to modern lamniform sharks. It represents a key evolutionary stage between earlier sharks of the genus Otodus and the later gigantic Otodus megalodon.
Carcharocles angustidens was a formidable apex predator that likely reached lengths of 8–10 metres (26–33 feet). It inhabited coastal and offshore marine environments where it preyed upon large fish, marine mammals, and other marine vertebrates.
Tooth Morphology and Identification
Teeth of Carcharocles angustidens are distinctive and easily recognisable due to their powerful cutting design.
Characteristic features include:
• Large triangular crown with strong curvature
• Prominent serrated cutting edges
• Broad and robust root structure
• Distinct lateral cusplets near the base of the crown
• Thick enamel designed for durability
The serrated edges functioned as highly efficient cutting blades capable of slicing through flesh and bone. These teeth were ideally suited for capturing large prey and processing meat.
The presence of lateral cusplets is an important identifying feature that distinguishes Carcharocles angustidens from later species such as Megalodon, whose teeth typically lack these structures.
Like all sharks, individuals replaced their teeth continuously throughout life, shedding thousands of teeth over their lifetime.
Ashley Formation Geological Context
This fossil originates from the Ashley Formation, a well-known marine sedimentary unit exposed across 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 were deposited in shallow marine environments along the Atlantic Coastal Plain, where sand, silt, and phosphate-rich sediments accumulated on the sea floor.
The Ashley Formation is famous for its diverse fossil assemblage, including:
• Large shark teeth such as Carcharocles angustidens
• Early whales and marine mammals
• Bony fish and rays
• Marine turtles and reptiles
• Molluscs and marine invertebrates
Many fossils are found within phosphate-rich layers, which have preserved numerous vertebrate remains.
Oligocene Marine Ecosystem of the Atlantic Coastal Plain
During the Oligocene Epoch, the southeastern United States was submerged beneath warm shallow seas connected to the Atlantic Ocean. These waters supported rich marine ecosystems filled with sharks, rays, fish, marine mammals, and numerous invertebrates.
Large predatory sharks such as Carcharocles angustidens occupied the top of the food chain. The emergence and diversification of early whales and dolphins during this time provided abundant prey for these powerful sharks.
The fossil record preserved within the Ashley Formation provides important insight into the evolution of marine predators and the structure of Oligocene marine ecosystems.
Fossilisation and Preservation
Shark teeth fossilise exceptionally well because they are composed of highly mineralised enamel and dentine, which resist decay long after the rest of the skeleton has disappeared.
When sharks shed their teeth during feeding or natural replacement cycles, the teeth settled onto the seabed where they became buried in sediment. Over millions of years, mineralisation preserved the teeth within the surrounding rock layers.
Many teeth from the Ashley Formation display excellent preservation of serrations, root structure, and enamel surfaces, making them highly desirable fossils for 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 from the Ashley Formation of South Carolina represents an exceptional addition to any prehistoric shark collection, Oligocene fossil display, or natural history cabinet, preserving a powerful relic of one of the ocean’s most formidable predators from the ancient seas of the Paleogene world.
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