Enameloid, also known as durodentine or vitrodentine, is an
enamel-like
tissue found in many fish. It is the primary outer component of shark
odontodes (teeth and
dermal denticles). Although the origin of enameloid is debated, it is probably
homologous
Homology may refer to:
Sciences
Biology
*Homology (biology), any characteristic of biological organisms that is derived from a common ancestor
*Sequence homology, biological homology between DNA, RNA, or protein sequences
* Homologous chrom ...
to
dentine rather than true enamel, despite its enamel-like strength and development. The term covers any hyper-mineralized tissue with an organic "scaffold" consisting of
ectodermal and
ectomesenchymal proteins.
References
Fish anatomy
Prehistoric fish
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