Scaloid

Scaloids are circular scales with visible "cut-up" stripes. True scaloid scales can only be found on the extinct Crossopterygians. The inner layer of the scale is made of lamellar bone. On top of this lies a layer of spongy or vascular bone and then a layer of dentinelike material called cosmine. The upper surface is keratin. The coelacanth has modified scaloid scales that lack cosmine and are thinner than true scaloid scales.

Sources

Kardong, Kenneth V. (1998). Vertebrates: Comparative Anatomy, Function, Evolution, second edition, USA: McGraw-Hill, 747 pp.. ISBN 0-07-115356-X/0-697-28654-1.

gollark: Yes.

gollark: Not really. The abstractions make it *not low level*.

gollark: Because it's bad for everything but low level stuff.

gollark: C is *lawful* - it obeys simple enough rules and stuff - but *evil*, because nasal demons and undefined behavior.

gollark: C is also lawful evil.

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