Journal of Palaeogeography     2017 6 (4):  251-320    ISSN: 2095-3836  CN: 10-1041/P Global case studies of soft-sediment deformation structures (SSDS): Definitions, classifications, advances, origins, and problems G. Shanmugam Department of Earth and Environmental Sciences, The University of Texas at Arlington, Arlington, Texas 76019, USA Received: null  Revised: null  Online: null Supporting info