Enameloid-capped Crocodilian or Fish Tooth (likely Enchodus or small Crocodylomorph)
cf. Enchodus petrosus or aff. Bottosaurus sp. • Vertebrate body fossil (dental element)
Geological Period
Late Cretaceous (Campanian-Maastrichtian)
Estimated Age
66 to 75 million years
Preservation Type
Permineralization with phosphate/iron replacement, giving the specimen its dark black/brown coloration and high-gloss finish.
Condition Assessment
Good to Very Good. The ridges are well-defined, though the base is likely broken or shed, and the tip shows minor wear/abrasion.
Taxonomic Classification
Phylum: Chordata, Class: Reptilia (or Osteichthyes), Order: Crocodilia (or Aulopiformes)
Morphological Description
Conical shape with deep longitudinal striations (ridges) running from the base towards the apex. The specimen shows a distinct dark, lustrous enameloid patina and a slightly blunt distal tip.
Rock Matrix
Likely originated from a phosphate-rich marine marl or greensand matrix, though the specimen is currently matrix-free.
Formation & Location
Commonly found in the Hell Creek Formation (USA), the Phosphate basins of Morocco (Khouribga), or the Atlantic Coastal Plain (New Jersey/Maryland marls).
Size & Dimensions
Approximately 2.5 to 3.5 cm in length, which is a standard size for adult predatory fish or juvenile crocodilian teeth of the Late Cretaceous.
Value & Rarity
Estimated Market Value
15.00 - 45.00 USD
Auction Estimate
25.00 - 60.00 USD (in a multi-specimen lot)
Rarity Assessment
Common. These teeth are frequently found in large quantities in Cretaceous lag deposits.
Scientific Significance
Represents secondary consumers in Late Cretaceous marine or near-shore ecosystems; useful for paleoenvironmental reconstruction and faunal diversity studies.
Preparation Recommendations
No further preparation needed. Keep in a dry, stable environment; a clear acrylic display case is recommended to prevent handling oils from dulling the enamel.
Notable Features
Highly developed longitudinal fluting and deep black coloration suggest high mineral concentration during fossilization, often associated with phosphate mining regions.