selachii defined in 1951 yearselachii - selachii;
selachii - a sub-class or order of Ghondrichthyes, containing the sharks, dogfish, skates, and rays. Sharp, rapidly replaced teeth, and upper jaw not fused to skull (Compare with: Holocephali). Occasionally extended to cover various fossil groups of Chrondrichthyes also occasionally restricted solely to sharks and dogfish.
near selachii in Knolik
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