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Cosmine resorption structures on three osteolepid jaws and their biological significance



Cosmine resorption structures on three osteolepid jaws and their biological significance



Lethaia 22(4): 413-424



Cosmine resorption structures on three osteolepid jaws provide evidence for two different types of resorption process, one superficial and one initially internal. The superficial process starts in the pore canal openings, and the internal probably in the dentine pulp cavities or other cavities with the cosmine. Different stages of the superficial process that have previously not been recorded can be seen. Their positions show that superficial resorption may start in a few centers, from which it may spread in all directions but at different rates in different directions. There is no observable correspondence between the occurrence of resorption and the growth of the dermal bones along their sutures. Thus, the primary reason for resorption is not to allow marginal growth of the dermal bones.

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Accession: 007165487

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DOI: 10.1111/j.1502-3931.1989.tb01444.x


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