1940  Xenaspis skinneri Miller & Furnish: 76, pl.24
           fig.1-6.
     1943  Xenaspis skinneri.-Miller & Unklesbay: textfig.4I.
     1966  Nielsenoceras skinneri Miller & Furnish: 292.
     1975  Nielsenoceras skinneri.-Spinosa, Furnish & Glenister:
           269, pl.5 fig.1,2, textfig.22A.

Fig. see TAX3266 C (from Miller & Furnish, 1940, fig.19).