Denticle (tooth feature)

Denticles, also called serrations, are small bumps on a tooth that serve to give the tooth a serrated edge. In paleontology, denticle characteristics such as size and density (denticles per unit distance) are used to describe and classify fossilized teeth, especially those of dinosaurs. Denticles are also present on the teeth of varanoid lizards, sharks, and mammals.[1]

Dromaeosauridae tooth

Dromaeosauridae tooth with small denticles along the cutting edge. Scale bars are 1 mm.

Ankylosaurus tooth

Ankylosaurus tooth with large denticles.

References

  1. ^ Smith, Joshua B.; Vann, David R.; Dodson, Peter (August 2005). "Dental morphology and variation in theropod dinosaurs: Implications for the taxonomic identification of isolated teeth". The Anatomical Record Part A: Discoveries in Molecular, Cellular, and Evolutionary Biology. 285A (2): 699–736. doi:10.1002/ar.a.20206.
Denticle

A denticle is any small tooth-like or bristle-like structure. "Denticle" may refer to:

Denticle (tooth feature), serrations on the teeth of dinosaurs, lizards, sharks, and mammals

Dermal denticles or placoid scales, in cartilaginous fishes

Pulp stone or endolith, a calcified mass in the pulp of a tooth

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