Macaronichnus is an ichnogenus of trace fossil that appears from the Cambrian era to the modern era. Macaronichnus is attributed to the deposit-feeding of worms in high-energy, sandy shallow-marine environments.
The environmental preferences of Macaronichnus are high-energy foreshores and shallow shorefaces.Clifton, H.E., Thompson, J.K., 1978. Macaronichnus segregatis: a feeding structure of shallow marine polychaetes. Journal of Sedimentary Petrology 48, 1293–1302. Pemberton, S.G., Spila, M., Pulham, A.J., Saunders, T., MacEachern, J.A., Robbins, D., Sinclair, I.K., 2001. Ichnology and Sedimentology of Shallow to Marginal Marine Systems. Geological Association of Canada, Short Course Notes, Vol. 15. AGMV Marquis, St. John’s Seike, K., Yanagishima, S.I., Nara, M., Sasaki, T., 2011. Large Macaronichnus in modern shoreface sediments: identification of the producer, the mode of formation, and paleoenvironmental implications. Palaeogeography, Palaeoclimatology, Palaeoecology 311, 224––229. Macaronichnus is an indicator of temperate to cold waters.Quiroz, L.I., Buatois, L.A., Mangano, M.G., Jaramillo, C.A., Santiago, N., 2010. Is the trace fossil Macaronichnus an indicator of temperate to cold waters? Exploring the paradox of its occurrence in tropical coasts. Geology 38, 651–654. Crippa, G., Baucon, A., Felletti, F., Raineri, G., Scarponi, D. 2018. A multidisciplinary study of ecosystem evolution through early Pleistocene climate change from the marine Arda River section, Italy. Quaternary Research 89(2). Abstract available at http://www.tracemaker.com
See also Ichnology
References
External links Chuck D. Howell's Ichnogenera Photos