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Can cartilage in chondrichthyan skeletons become calcified?
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chondrichthyan
Southern stingrays (Dasyatis americana or Hypanus americanus) are found in the western Atlantic Ocean.
Yes, the cartilage in the skeletons of chondrichthyans can become calcified. While these fish lack true bone throughout their skeletonsâwith the exception of their tooth rootsâtheir cartilaginous structures are frequently calcified, a feature that is particularly common in their vertebrae.1