“…Consequently, variations in the taphonomic signature of siliciclastic fossiliferous deposits may be driven primarily by sedi mentary inputs and depositional processes (i.e., R sediment model of Kidwell, 1985Kidwell, , 1986, or by variations in the production rate of biogenic skeletal remains (i.e., the R hardpart model; see Toma sových et al, 2006). This assumption has been successfully corroborated by qualitative and quantitative studies of several Quaternary (and older) siliciclastic successions around the globe (Kidwell, 1989;Meldahl, 1990;Abbott et al, 2005;Cantalamessa et al, 2005;Toma sových et al, 2006;Scarponi and Kowalewski, 2007;Zecchin and Caffau, 2011;Avila et al, 2015;Scarponi et al, 2016;Brady, 2016).…”