Bactrites arkonensis (Whiteaves 1898)
Up to 2cm. long. Found on the floor of the south pit at Hungry Hollow, On., Canada. Arkona Shale Formation, Givet, Middle Devon.
By Ludwigia
Up to 2cm. long. Found on the floor of the south pit at Hungry Hollow, On., Canada. Arkona Shale Formation, Givet, Middle Devon.
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