Helicoprion tooth whorl

A tooth whorl found in extinct holocephalids, in which the teeth in the center of the spiral are smallest and oldest, probably occupying the entire mandibular arch.

Type	Organ
Parent Structure	set of lower jaw teeth

Frequently Asked Questions

What is the Helicoprion tooth whorl?

A tooth whorl found in extinct holocephalids, in which the teeth in the center of the spiral are smallest and oldest, probably occupying the entire mandibular arch.

Related Structures

1st arch mandibular component ventral mandibular arch 1st arch mandibular ectoderm ectoderm of mandibular component 1st arch mandibular mesenchyme mandibular component mesenchyme 1st arch mandibular mesenchyme from head mesenchyme 1st arch mandibular mesenchyme from neural crest 1st arch maxillary component 1st arch maxillary ectoderm ectoderm of maxillary component 1st arch maxillary-mandibular cleft 1st arch maxillary-mandibular groove ectoderm

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