| Why did some of them choose infaunal life at approximately the same time that other organisms developed mineralized skeletons? |
| Results from a pair of epifaunal and infaunal dendrochirotids from Family Cucumariidae indicate little variation in the relative amount of ossification. |
| Most, if not all, of those infaunal traces of activity were produced probably by relatives of priapulid worms. |
| This study concerns all infaunal brachiopods that possess an inarticulate, organo-phosphatic, linguliform shell. |
| In particular, edible infaunal bivalves are often called clams. |
| Lingulids are shallow burrowing infaunal filter feeders of the shallow intertidal zone. |
