Trypanites

<i>Trypanites</i>

Trypanites

Trace fossil

Trypanites is a narrow, cylindrical, unbranched boring which is one of the most common trace fossils in hard substrates such as rocks, carbonate hardgrounds and shells (Bromley, 1972). It appears first in the Lower Cambrian (James et al., 1977), was very prominent in the Ordovician Bioerosion Revolution (Wilson and Palmer, 2006), and is still commonly formed today. Trypanites is almost always found in calcareous substrates, most likely because the excavating organism used an acid or other chemical agent to dissolve the calcium carbonate (Taylor and Wilson, 2003). Trypanites is common in the Ordovician and Silurian hardgrounds of Baltica (Vinn et al. 2015).

Quick Facts Trypanites, Trace fossil classification ...
Trypanites borings in an Upper Ordovician hardground from northern Kentucky.
Trypanites borings in an Upper Ordovician hardground from northern Kentucky. The borings are filled with diagenetic dolomite (yellowish). Note that the boring on the far right cuts through a shell in the matrix.
Polished section of the Upper Ordovician bryozoan Amplexopora with clusters of Trypanites borings; northern Kentucky.

References

  1. [1]
    Wisshak, M.; Knaust, D.; Bertling, M. (2019). "Bioerosion ichnotaxa: review and annotated list". Facies. 65 (2): 24. doi:10.1007/s10347-019-0561-8.
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