| Biotic Setting | Benthic/Attached Biota |
| Biotic Class | Faunal Bed |
| Biotic Subclass | Inferred Fauna |
| Biotic Group | Pelletized, Fluid Surface Layer Tracks and Trails Egg Masses Fecal Mounds |
| Definition | Areas dominated by evidence (real or inferred) of faunal activity, but where the fauna themselves are not currently present or evident, given the sampling methodology. |