Shell fragments from bivalves, gastropods and foraminifera in a medieval mortar from Moster Old Church. On the larger fragment in the middle, tiny holes (biopitting) from microboring organisms can be spotted. Width of field c. 8 cm. Photo by PS
Shell fragments from bivalves, gastropods and foraminifera in a medieval mortar from Moster Old Church. On the larger fragment in the middle, tiny holes (biopitting) from microboring organisms can be spotted. Width of field c. 8 cm. Photo by PS
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