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Sphaerexochus dimorphus pygidium, short spine form. From Chatterton and Perry 1984 Palaeontographic Abt. A 184

Fri, 07/31/2009 - 18:44 — Congreve, Curtis
Sphaerexochus dimorphus pygidium, short spine form. From Chatterton and Perry 1984 Palaeontographic Abt. A 184
Photographer: BDE Chatterton and DG Perry