We conclude at the outset that Higgs's (2002) discussion is not based on his examination of core and outcrop of the Hollin and Napo formations in the Sacha field in Ecuador that we used (Shanmugam et al., 2000). Our conclusion is based on (1) the lack of any reference to his own core or outcrop study of the Sacha field, (2) the lack of specific details of core descriptions from the Sacha field, and (3) the lack of any photographic documentation of sedimentary features from the Sacha field in support of his tidal shelf model. A rigorous photographic...

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