1. Department of Biological Science, Florida State University, 319 Stadium Drive, Tallahassee, FL 32306–4295, USA.
2. Department of Mechanical Engineering, Lehigh University, 19 Memorial Drive West, Bethlehem, PA 18015, USA.
3. Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA 19104, USA.
4. Division of Paleontology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, USA.
5. Department of Mechanical and Aerospace Engineering, University of Florida, 328 Mechanical Engineering Building, Gainesville, FL 32611, USA.