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Pentrimites Pyriformis Carboniferous USA

Pentrimites pyriformis Blastoid. GEOLOGIC AGE: Mississippian. 300 million years old. STRATIGRAPHIC DETAIL: Paint Creek Formation. LOCATION: Floraville, Illinois, USA. Description: (GEM GRADE) Lovely detail and inflated calyx. Size: 10mm high. Priced at £5. Supplied with label and in an attractive display box. Quote Ref No. OFB 416
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