Technical Comments Sea Level History

and his co-workers have completed an important update of the chro-nology of coastal onlap and eustatic fluctua-tions in Mesowic and Cenowic time (1). Seismic stratigraphic results are augmented in the new charts by outcrop and well-log studies to document an impressive total of 119 sea level cycles since the beginning of the Triassic. In addition, the Cretaceous results have been published officially for the first time. However, apart from distinguish-ing between relative changes of coastal on-lap and eustasy, the methodology and as-sumptions are much the same as those used to construct the first version of the "sea leve