| At first sight, the Shark Bay stromatolites look like rocks lying in an orderly fashion in the intertidal zone. |
| The coastal intertidal zone is the area between the low and high tide zones that is not quite oceanic and not quite terrestrial. |
| Mudflats lie lower in the upper intertidal zone than marshes and are smooth, almost level surfaces across which tidal creeks meander. |
| The development of Skolithos trace fossils on the upper surface of some beds suggests periodical emergence into an intertidal zone. |
| Lingulids are shallow burrowing infaunal filter feeders of the shallow intertidal zone. |
| The intertidal zone supplies fishermen with surf perch, cabezons, blennies, rock fish, pricklebacks, mussels and sea urchins. |
