echinometer sea urchin latin: echinometra mathaei with sharp striped needles on a white background. paleontology

abstract ancient animal animals archeology background beach black brown celebration centuries closeup crystal crystalline detail earth excavation explosion fireworks flower fossil frost geology hard hedgehog isolated life light macro mineral mineralogy natural nature needles object old ornament outdoor paleontology plant pressure science sea seed shape sharp shellfish specimen spine star striped summer sun temperature texture textured thistle transparent trilobite urchin white wild