Sonninia omphalica (FOSSIL) Buckman †
Sonninia palmata (FOSSIL) Buckman †
Sonninia papilionacea (FOSSIL) Buckman †
Sonninia parvicostata (FOSSIL) Buckman †
Sonninia patella (FOSSIL) (L. Waagen, 1867 †)
Sonninia paucinodata (FOSSIL) Buckman †
Sonninia plicata (FOSSIL) Buckman †
Sonninia projectifer (FOSSIL) S.S. Buckman, 1910 †
Sonninia propinquans (FOSSIL) (C.É. Bayle, 1848 †)
Sonninia ptycta (FOSSIL) Buckman †
Sonninia quadrifida (FOSSIL) Buckman †
Sonninia reclinans (FOSSIL) Buckman †
Sonninia reformata (FOSSIL) Buckman †
Sonninia renovata (FOSSIL) Buckman †
Sonninia revirescens (FOSSIL) Buckman †
Sonninia semispinata (FOSSIL) Buckman †
Sonninia simplex (FOSSIL) Buckman †
Sonninia spinea (FOSSIL) Buckman †
Sonninia spinicostata (FOSSIL) Buckman †
Sonninia spinifera (FOSSIL) Buckman †
Sonninia spinosa (FOSSIL) Buckman †
Sonninia subcostata (FOSSIL) Buckman †
Sonninia subdecorata (FOSSIL) Buckman †
Sonninia subirregularis (FOSSIL) Buckman †
Sonninia submarginata (FOSSIL) Buckman †
Sonninia subsimplex (FOSSIL) Buckman †
Sonninia subspinosa (FOSSIL) Buckman †
Sonninia substriata (FOSSIL) Buckman †
Sonninia sulcata (FOSSIL) (Buckman) †
Sonninia tridactyla (FOSSIL) Buckman †
Sonninia tuxedniensis (FOSSIL) Imlay, 1964 †
Alaskinia alaskensis (FOSSIL) (Westermann, 1969 †)
Euhoploceras adicra (FOSSIL) (L. Waagen, 1867 †)
Euhoploceras bifurcata (FOSSIL) Westermann, 1969 †
Euhoploceras marginata (FOSSIL) (Buckman, 1892 †)
Euhoploceras marginata dominans (FOSSIL) (Buckman, 1892 †)
Euhoploceras modestum (FOSSIL) (Buckman, 1892 †)