a complex of organisms of dense calcareous soil in the form of brachiopods, corals and others on a white background.

ancient animal archeology background beach brachiopods brown calcareous carboniferous centuries close closeup complex corals crystal crystalline dense detail early earth evolution excavation form fossil fossilized fossils frost geological geology hard isolated macro marine material mineral mineralogy natural nature object old organisms ornament others paleontology prehistoric pressure rock rough science sea seashell shape shell shellfish soil specimen stone sun temperature texture textured transparent trilobite white