| If so, the oldest traces of locomotory activities of the metazoans should be connected with their infaunal life. |
| The Baltic clam achieves highest densities in mesohaline habitats of the bay where it ranks first in benthic infaunal biomass. |
| Lingulids are shallow burrowing infaunal filter feeders of the shallow intertidal zone. |
| In particular, edible infaunal bivalves are often called clams. |
| Within a particular paleoenvironment the organisms could further subdivide resources by establishing epifaunal, and possibly infaunal, tiers. |
| Why did some of them choose infaunal life at approximately the same time that other organisms developed mineralized skeletons? |
