A young master of recycling the humblest of disused materials, Gedi Sibony takes a bold step in a new direction with a group of large new paintings on side panels from old tractor trailers. Identifying marks like trucking company logos and brand icons are effaced with broad and seemingly careless strokes of paint, whether applied by brush or roller. In a darkened back room is an older sculpture in which a knockoff of a Lucio Fontana "theater" serves as a backdrop for two crude imitations of tiny prehistoric figures who seem to gaze into a dark sky created by the Italian artist's work. It's a model for a superb show the artist mounted at St. Louis's Pulitzer Foundation in 2012. Like all Sibony's efforts, it reaches at once to the ridiculous and the sublime.