A growing body of research aided by recent orbital observations has begun to address the presence of widespread sedimentary volcanic morphologies on Mars and other bodies. Proposed mud volcanism, sedimentary diapirism, and liquefaction morphologies are supported by observations of pitted cones, flows, and injectites, vacuum chamber experiments, and Earth analog comparison. We solicit contributed papers on data analysis, laboratory measurements, ground-based observations, and theoretical developments that build on the current state of knowledge of sedimentary volcanism on Mars and in the solar system.