Cosmine

Cosmine is a spongy, bony material that makes up the dentine-like layers in the scales of the lobe-finned fishes of the class Sarcopterygii. Fish scales that include layers of cosmine are known as cosmoid scales.

See also

Further reading

Ørvig, TOR (1969). "Cosmine and Cosmine Growth". Lethaia. 2 (3): 241. doi:10.1111/j.1502-3931.1969.tb01850.x.
Meinke, Deborah K. (1984). "A review of cosmine: Its structure, development, and relationship to other forms of the dermal skeleton in osteichthyans". Journal of Vertebrate Paleontology. 4 (3): 457. doi:10.1080/02724634.1984.10012022.
On the biology of cosmine

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