Narrow smooth-edged cusp with fine serrations mostly confined to the base on upper teeth.
If the base is worn away, the subtle basal serrations disappear and the tooth can resemble several other requiem sharks.
01
IDENTIFICATION TRAITS
What to inspect.
- Crown shape
- Narrow dagger or Hooked blade
- Cutting edge
- Smooth edge or Fine serrations
- Side cusplets
- No side cusplets
- Root
- Two distinct root lobes
- Reference height
- roughly 8–30 mm, depending on age and jaw position
- Time
- Living; fossil teeth also occur
02
WHY IT LOOKS THIS WAY
Form follows feeding.
Lower teeth are narrow and smooth. Upper teeth become more oblique toward the corners of the mouth.
03
LOOKALIKES
Do not stop at the first match.
PRIMARY / AUTHORITATIVE REFERENCE
Open source ↗Florida Museum
Use the source alongside collection locality and geologic age. A photograph alone cannot establish provenance.
HAVE A TOOTH TO CHECK?
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