holaulacorhizid

holaulacorhizid
vascularisation of a tooth root through many small foramina concentrated in a median groove running from the outer to the inner face, e.g. in Rajidae (Herman et al., 1994)

Dictionary of ichthyology. 2009.

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  • anaulacorhizid — vascularisation of a tooth root through scattered foramina of equal size on both outer and inner faces, e.g. in Hexanchidae. A secondarily anaulacorhizid condition occurs where the median groove of a holaulacorhizid type of root i …   Dictionary of ichthyology

  • neo-holaulacorhizy — a modification of the holaulacorhizid type of tooth root in Chondrichthyes where a shallow median groove and extremely expanded pulp cavity are combined (Herman et al., 1994) …   Dictionary of ichthyology

  • secondarily anaulacorhizid — a condition of the chondrichthyan tooth where the median groove of a holaulacorhizid type of root is totally overgrown to form a closed tube internally connected or merged with the pulp cavity (Herman et al., 1994) …   Dictionary of ichthyology

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