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Archaeocidaris [Palaeocidaris] nerei (Munster, 1843); NHM E9332. Tournasian, Lower Carboniferous, Tournai, Belgium. Interambulacral plates. Width widest plate 9 mm.
Archaeocidaris [Palaeocidaris] nerei (Munster, 1843); NHM E9332. Tournasian, Lower Carboniferous, Tournai, Belgium. Interambulacral plates.
Width widest plate 9 mm.