Gordia

Gordia Temporal range: Ediacaran–Tertiary PreЄ Є O S D C P T J K Pg N
Trace fossil classification
Genus:	†Gordia Emmons, 1844

Gordia marina is a lower Cambrian ichnofossil, and is the most common trace fossil in the Kaili biota displaying "smooth, cylindrical or subcylindrical, non-branching, winding and irregularly curving burrows, commonly self-overcrossing".^[1] Probably made by a worm-like creature displaying fodinichnial (sediment scavenging) behaviour.^[1] It takes the form of unlined, curving parallel-walled burrows that often end with a nub, probably created as the creature probed the over- or under-lying sediment.^[1] It resembles Helminthopsis and Haplotichnus^[1]

References

1. Wang, Y.; Lin, J. P.; Zhao, Y. L.; Orr, P. J. (2009). "Palaeoecology of the trace fossil Gordia and its interaction with nonmineralizing taxa from the early Middle Cambrian Kaili Biota, Guizhou Province, South China". Palaeogeography Palaeoclimatology Palaeoecology 277: 141–148. doi:10.1016/j.palaeo.2009.02.017.