The image shows a close up of a piece of rock on a ruler, which appears to be a brachiopod, with a scale at the bottom.
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The image shows a close up of a piece of rock on a ruler, which appears to be a brachiopod, with a scale at the bottom. The rock is a light brown color and has a smooth, glossy texture. It is lying on a flat surface, and the ruler is a standard measuring tool used to measure the size of the rock.
