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Helminthopsis
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Trace_fossil/kaucgzNj">Trace fossil</a></li> <li><a href="/facts/Ichnology/kaucgzNj">Ichnology</a></li></ul> Wikimedia Commons has media related to Helminthopsis. <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Fillion, D.; Pickerall, R.K. (1990). "Ichnology of the Upper Cambrian? to Lower Ordovician Bell Island and Waban groups of eastern Newfoundland, Canada". Palaeontographica Canadian. 7: 1–41. <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Buatois, L.A., Mángano, M.G., Maples, C.G. and Lanier, W.P. (1998). "Ichnology of an Upper Carboniferous fluvio-estuarine paleovalley: The Tonganoxie sandstone, Buildes Quarry, eastern Kansas, USA". Journal of Paleontology. 72: 152–180. Bibcode:1998JPal...72..152B. doi:10.1017/S0022336000024094. S2CID 140690638.{{cite journal}}: CS1 maint: multiple names: authors list (link) <a href="/wiki/Bibcode_(identifier)" target="_blank">/wiki/Bibcode_(identifier)</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>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 (1–2): 141–148. Bibcode:2009PPP...277..141W. doi:10.1016/j.palaeo.2009.02.017. <a href="/wiki/Bibcode_(identifier)" target="_blank">/wiki/Bibcode_(identifier)</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Carmona, N.B., Buatois, L.A., Mángano, M.A. and Bromley, R.G. (2008). "Ichnology of the Lower Miocene Chenque Formation, Patagonia, Argentina: animal - substrate interactions and the Modern Evolutionary Fauna". Ameghiniana. 45 (1).{{cite journal}}: CS1 maint: multiple names: authors list (link) <a href="http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000100007" target="_blank">http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142008000100007</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>