? 1916  Gastrioceras sp. Girty: 22.
   ? 1938  Gastrioceras sp. McKee: 165.
     1957  Pseudogastrioceras aff. P. simulator Miller, Furnish &
           Clarke: 1059.  
     1958  Pseudogastrioceras mckeei Miller & Furnish: 682, pl.
           94, fig.1,2.