| The odontophore is an unpaired typically T-shaped ossicle between and dorsal to the distal side of each mouth-angle ossicular pair. |
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| Viguier noted the value of the odontophore, an unpaired interbrachial ossicle located behind each pair of mouth angle ossicles. |
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| We also explore the extraxial nature and phylogenetic significance of the odontophore. |
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| The possession of an odontophore internal to the mouth angle ossicles can only be interpreted as an apomorphy of crown asteroids. |
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| The radula primarily functions to scrape bacteria and algae off rocks, and is associated with the odontophore, a cartilaginous supporting organ. |
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