Public domain photos

The image shows a close up of a small rock on a black surface, with a scale beside it. The rock appears to be a trilobite, with its distinctive ridges and bumps on its surface. The scale beside the rock is likely used to measure the size of the rock.

The image shows a close up of a small rock on a black surface, with a scale beside it. The rock appears to be a trilobite, with its distinctive ridges and bumps on its surface. The scale beside the rock is likely used to measure the size of the rock.Open in library