Fig. 7From: Urchins on the edge: an echinoid fauna with a mixed environmental signal from the Eocene of JamaicaTemporal distribution of fossil echinoids of Jamaica (after Donovan 2001, fig. 2; Donovan et al. 2007, fig. 4). The Eocene record is divided into three uneven parts: lowermost (=turbidites of the Richmond Formation); mid-Lower to mid-Middle (=Yellow Limestone Group); and overlying White Limestone GroupBack to article page