• Jurassic bipeds that could hop? perch? pounce? fly? 

      Van Dijk, D. Eduard (Academy of Science for South Africa, 2001)
      The description of the ichnogenus Molapopentapodiscus (Ellenberger, 1970) includes the presumption that forward progression was by bounding with feet together. That this genus, and other genera based on footprints or ...