The present work makes unique contribution to the bryozoology in the systematic part of which was sparsely studied from this region. It gives geological and geographical ranges of most of the palaeoecologically important species. Further, on the basis of statistical analysis of the bryozoan assemblages the P.I. has deduced the palaeoecology of the Western Kachchh. Phylogenetic analysis using ‘PAST’ programme the P.I. has thrown light on the evolutionary aspects of some important genera and species. Use of bryozoans for biostratigraphical purpose has been attempted for the first time by P.I. although they are long ranging, it was inferred the broad zonation may possible. Further, P.I. has attempted to study of sequence stratigraphy of Tertiary sequences on the basis of fossil Bryozoa and as