TOOTH PROFILE / LIVING

Nurse sharktooth guide

Small tooth with a central cusp flanked by several smaller cusplets on a broad base.

LivingGinglymostoma cirratumLiving; fossil teeth also occur
FIELD VERDICT

Small tooth with a central cusp flanked by several smaller cusplets on a broad base.

Small teeth are easily damaged or mismeasured; a close macro photograph is especially important.

01

IDENTIFICATION TRAITS

What to inspect.

Crown shape
Several cusps or Flat / crushing
Cutting edge
Smooth edge
Side cusplets
Several smaller cusps
Root
Wide / nearly flat root
Reference height
roughly 314 mm, depending on age and jaw position
Time
Living; fossil teeth also occur
02

WHY IT LOOKS THIS WAY

Form follows feeding.

The teeth form a pavement suited to gripping and crushing small prey rather than slicing large prey.

03

LOOKALIKES

Do not stop at the first match.

ExtinctHybodusOne central cusp with several smaller lateral cusps arranged on a broad base.Compare profile →
RELATED FORMOther carpet sharksUse locality, age and associated teeth to separate this lookalike.
PRIMARY / AUTHORITATIVE REFERENCE

Florida Museum

Use the source alongside collection locality and geologic age. A photograph alone cannot establish provenance.

Open source ↗
HAVE A TOOTH TO CHECK?

Put these traits into the identifier.

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