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Crotalocephalina was thought to bear a passing resemblance to the head of a rattlesnake (Crotalus)
Measurements are approximate and the minimum size you should expect your item to be
Exceptional specimens of individual iron pyrite cubes
Extra large: Width 16
Brittle Star Mosasaur Crotalocephalina was thought to bearOphiuroidea brittle stars. These prehistoric echinoderms are preserved on a gritty micaceous siltstone. Limonite, which is heavy in iron, gives the brittle stars their distinctive orange colour. Found in the Kataoua formation, Morocco. From the Upper Ordovician, circa 450 million years old. Minimum size Length 13cm Height 11cm Depth 3cm Measurements are approximate and the minimum size you should expect your item to be. Includes a small display stand.
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