pt. 1909  Gastrioceras richardsonianum Girty: 54, pl.11 fig.1-4, 6-9,11 (not fig.5,10).
     1924  Homoceras richardsonianum.-Bisat: 103.
     1930  Homoceras richardsonianum.-Bisat: 31.
     1937  Cravenoceras richardsonianum.-Plummer & Scott:: 261, pl.8 fig.12-16, textfig.82.
     1949  Cravenoceras richardsonianum.-Youngquist: 293, pl.61 fig.8,9, textfig.1E,2B.
     1956  Cravenoceras (Richardsonites) richardsonianum.-Elias inTomlinson et al.: 128, pl.6 fig.4,5.
     1965  Cravenoceras richardsonianum.-Gordon: 212, pl.22 fig.28-34, textfig.53A-D,55A,B,K.
     1975  Cravenoceras richardsonianum.-Kant: 205, fig.2.
     1977  Cravenoceras richardsonianum.-Saunders, Manger &  Gordon, pl.2 fig.6,7.
     1977  Cravenoceras richardsonianum.-Kant: 274, fig.7 B,, 9 B.
     2000  Richardsonites richardsonianus.-Titus: 33, fig.29, pl.8 fig.1-25.
cf. 2001  Richardsonites cf. richardsonianus.-Titus & Manger: 4, fig.3, 4.7-4.8.

[Holotype: USNM 119585].
     
[Cadiconic to subcadiconic juveniles (D < 10 mm)].

Fig. see TAX2752 A  (suture). TAX2300 A, B (sutures), TAX2634  1-3 (sutures), 4 (cross section).