Several planctonic foraminifera
Keywords
microorganism,
stone,
sedimentary,
green,
white,
rock,
skeleton,
old,
calcium,
microscopic,
illustration,
limestone,
microscope,
retro,
paleontology,
blue,
shell,
marin,
cretaceous,
sea,
vintage,
plankton,
background,
detail,
microbe,
geology,
carbonate