Totally Geodesic Seifert Surfaces in Hyperbolic Knot and Link   Complements II
  We generalize the results of [AS], finding large classes of totally geodesic Seifert surfaces in hyperbolic knot and link complements, each the lift of a rigid 2-orbifold embedded in some hyperbolic 3-orbifold. In addition, we provide a uniqueness theorem and demonstrate that many knots cannot possess totally geodesic Seifert surfaces by giving bounds on the width invariant in the presence of such a surface. Finally, we utilize these examples to demonstrate that the Six Theorem is sharp for knot complements in the 3-sphere. 
Colin Adams, Hanna Bennett, Christopher Davis, Michael Jennings,   Jennifer Novak, Nicholas Perry, and Eric Schoenfeld