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ossicle SOST

ossicle BIOL

ossicle BIOL

ossicle

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Another specific wormian bone, the pterion ossicle, sometimes exists between the sphenoidal angle of the parietal bone and the great wing of the sphenoid bone. en.wikipedia.org

In reptiles, birds, and early fossil tetrapods, there is a single auditory ossicle, the columella (that is homologous with the stapes, or stirrup of mammals). en.wikipedia.org

There are a number of cirri or unbranched appendages on a low, cone-shaped dorsal ossicle, a bone-like structure in the centre of the disc. en.wikipedia.org

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