Bioglyphs are features in burrow or boring walls produced by such animal activity as scratching, drilling, plucking, gnawing, poking, and etching. Bioglyphs are important aspects to consider when making paleoethologic interpretations of trace fossils, because they can offer direct clues to understanding the mechanism of excavation of the trace fossil, the identity of the tracemaker, the purpose of the burrow or boring, and the character of the sediment in which the trace fossil has been produced.

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