Figure 21. Poorly sorted grainstone with moldic porosity, west wall of Lithakia quarry, near Keri, Zakynthos.
Cretaceous, Maastrichtian, rubbly limestone from 1-2 meters below unconformity. Porous, rounded but poorly sorted rudist biosparite. Abundant rudists, possible other mollusks, and benthic forams (including large forms) dominate; minor echinoid detritus.  Highly fragmented and moderately well rounded but poor size sorting. Micrite envelopes common.  Blocky to bladed calcite spar fringe cement; development then of massive leaching with superb moldic porosity. All calcite is non-ferroan. Long dimension = 16 mm.