ganoine การใช้

While often considered a synapomorphic character of ray-finned fishes, ganoine or ganoine-like tissues are also found on the extinct acanthodii.
While often considered a synapomorphic character of ray-finned fishes, ganoine or ganoine-like tissues are also found on the extinct acanthodii.
"Guiyu " was covered by ganoine tissue, a texture that covers the scales and cranial bones as in early ray-finned fishes.
Ganoine is an ancient feature of ray-finned fishes, being found for example on the scales of stem group actinopteryigian " Cheirolepis ".
They are derived from cosmoid scales, with a layer of dentine in the place of cosmine, and a layer of inorganic bone salt called ganoine in place of vitrodentine.