Fossilized Shark Tooth
Carcharodon cf. carcharias or Galeocerdo cf. cuvier • Body fossil, vertebrate tooth
Geological Period
Neogene (Miocene to Pliocene)
Estimated Age
5 to 23 million years
Preservation Type
Permineralization and complete mineral replacement, often by apatite, silica, or iron oxides, giving it a characteristic amber-brown coloration.
Condition Assessment
Good condition, showing minor edge wear and abrasion typical of alluvial transport, but with a complete crown intact.
Taxonomic Classification
Phylum Chordata, Class Chondrichthyes, Subclass Elasmobranchii, Order Lamniformes
Morphological Description
Elongated, slender tooth crown with smooth or slightly serrated cutting edges, lack of prominent lateral cusplets, and a robust root structure partially obscured or eroded.
Rock Matrix
Isolated specimen free of significant matrix, though typically sourced from phosphate deposits, marine sands, or alluvial river gravels.
Formation & Location
Peace River formation (Florida), Hawthorne Group, or similar marine sedimentary deposits globally.
Size & Dimensions
Approximately 1.5 cm to 2.5 cm in length, falling within the smaller end of adult medium-sized shark tooth ranges.
Value & Rarity
Estimated Market Value
$10 - $30 USD
Auction Estimate
$15 - $40 USD
Rarity Assessment
Common, widely distributed across various marine deposit sites worldwide.
Scientific Significance
Provides evidence of ancient marine apex predators, paleo-water temperatures, and coastal marine biodiversity during the Neogene period.
Preparation Recommendations
Gentle cleaning with warm water and mild detergent if required; no harsh acid preparation needed. Store in a stable, dry environment.
Notable Features
Rich honey-brown to dark amber coloration resulting from mineral replacement by iron or phosphate compounds during fossilization.