Fugichnia is an ethological class of trace fossil characterized as "escape burrows" that are formed as a result of organisms' attempts to escape burial in sudden high-sedimentation events like turbidity currents.[1] The burrows are often marked with chevron patterns showing the upward direction the organisms were tunneling.

Lockeia from the Dakota Formation (Upper Cretaceous). These are bivalve escape burrows (fugichnia).

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References

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  1. ^ Allaby, Michael, ed. (2008). A dictionary of earth sciences. Oxford paperback reference (3rd ed.). Oxford; New York: Oxford University Press. ISBN 978-0-19-921194-4. OCLC 177509121.
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