Genus
Gordia Emmons, 1844
Taxon description
Hammersburg et al., 2018
Diagnosis.—Smooth, winding but not meandering, unbranched, cylindrical burrows with common overcrossings and massive infill (Fillion & Pickerill, 1990; Wang et al., 2009).
Getty et al., 2017
Remark. The ichnogenus Gordia is similar to Helminthoidichnites and Helminthopsis, but can be differentiated from these two taxa by its tendency to loop and self-cross (e.g., Pickerill and Peel 1991; Han and Pickerill 1995; MacNaughton and Pickerill 1995; Buatois et al. 1998b; Uchman et al. 2009).
Selection of related publications
Uchman, A., Hanken, N.-M., Binns, R. 2005. Ordovician Bathyal Trace Fossils From Metasiliciclastics in Central Norway and Their Sedimentological and Paleogeographical Implications. Ichnos 12, 2, 105-133. DOI:10.1080/10420940590914534
Crimes, T. P. 1992. Changes in the trace fossil biota across the Proterozoic-Phanerozoic boundary. Journal of the Geological Society 149, 4, 637-646. DOI:10.1144/gsjgs.149.4.0637
Palij, V. M., Posti, E., Fedonkin, M. A. 1979. Soft-bodied Metazoa and trace fossils of Vendian and Lower Cambrian. Upper Precambrian and Cambrian Paleontology of East-European Platform, pp. 49-82. Nauka.
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Classification
References based on distribution
- Palij et al., 1979 Ventspils D-3 borehole 1129.4 - 1129.4 Cambrian
- Uchman et al., 2005b Ordovician
- Crimes, 1992a