Neoichnological studies of the downdrift coastal Ganges deltaic region (Ganges Delta Complex) indicate the nature and environmental zonation of the lebensspuren of common endobenthic invertebrates dominated by the brachyuran amphibious crab Family Ocypodidae(Ocypodespp.,Ilyaplax pusillusandUca marionis)and are utilized to interpret analogous trace fossils and paleoshoreline environments. The polycha‐eteDiopatra cuprea,the gastropodsTurritellaspp.,Tele‐scopium telescopiumandCerithidea obtusum,some bivalves and the boring crabCharybdis rostrataalso produce diagnostic lebensspuren.