“…Combined with their unique food inclusions, information on their size and shape therefore is very useful in reconstructing potential producers (Northwood, 2005). The morphological characteristics of coprolites produced by different groups of animals in aquatic habitats have been examined frequently (Kraeuter and Haven, 1970;McAllister, 1985;Schmitz et al, 1991;Lamboy et al, 1994;Nothwood, 2005;Milàn et al, 2012a;Eriksson et al, 2011;Shen et al, 2014;Kietzmann and Palma, 2014). For example, faeces produced by marine invertebrates were relatively small, with a maximum length commonly <5 mm (Kraeuter and Haven, 1970;Arakawa, 1971;Northwood, 2005;Shen et al, 2014;Kietzmann and Palma, 2014).…”