Haplotichnus

Haplotichnus is an ichnogenus of invertebrate trace fossil that traditionally has been distinguished from the curving, parallel-sided, unlined Gordia, because its bends are sometimes very sharp.^[1]. Most recently, Getty and Bush (2016) synonymized Haplotichnus with Treptichnus due to the presence of bifurcating projections at the zigzag turns^[2]. Other features, such as the looping course of the trace, thought to distinguish Haplotichnus from Treptichnus, are actually seen in one of the syntypes of the latter ichnogenus, further supporting Getty and Bush's (2016) proposed synonymy.

References

^ 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.
^ Getty, Patrick; Bush, Andrew. "On the Ichnotaxonomic Status of Haplotichnus indianensis (Miller, 1889)". Ichnos. doi:10.1080/10420940.2016.1270210.

This trace fossil-related article is a stub. You can help Wikipedia by expanding it.

[Wang2009-1] 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.

[2] Getty, Patrick; Bush, Andrew. "On the Ichnotaxonomic Status of Haplotichnus indianensis (Miller, 1889)". Ichnos. doi:10.1080/10420940.2016.1270210.

[1]

[2]