image: Loose block of Brigantian limestone showing bedding surface crowded with brachiopods, in particular large convex pedicle valves of Gigantoproductus sp (with strong fluting - a feature especially diagnostic of Brigantian species).
Loose block of Brigantian limestone showing bedding surface crowded with brachiopods, in particular large convex pedicle valves of Gigantoproductus sp (with strong fluting - a feature especially diagnostic of Brigantian species).
 
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