1. ulrichi
    [Prolyelliceras ulrichi]
  2. ultima
    [Pseudoschloenbachia (Buehreriella) ultima]
  3. umbilicatus
    [Oecotraustes umbilicatus]
  4. umbilicum
    [Stephanoceras umbilicum]
  5. umbilicum
    [Stephanoceras umbilicum]