Sequence stratigraphy of the Punta Ballena Member of the Jama Formation (Early Pleistocene, Ecuador): insights from integrated sedimentologic, taphonomic and paleoecologic analysis of molluscan shell concentrations

The sedimentological and paleontological evidence presented here not only supports the results of previous studies, which demonstrate the value of condensed shell concentrations in the identification of stratigraphically significant surfaces, but also provides adds to the distinctive features of these shell beds.