| Edriophus levis Edrioasteroid Bobcaygeon Formation Brechin, Ontario, Canada An unusual grouping of these edrioasteroids. Size: 5 cm across | 
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| Edriophus levis Edrioasteroid Bobcaygeon Formation Brechin, Ontario, Canada An unusual grouping of these edrioasteroids. Size: 5 cm across |
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