Quotations and Dialogue
Q. Is there a term for a quote that comes after a subheading?
A. Sometimes a quote is just a quote, but if the content is similar to that of a book epigraph or chapter epigraph (perhaps including a source line)—that is, something pithy or funny or thoughtful, rather than a run-of-the-mill chunk of supporting material—then call it an epigraph or section epigraph.