1884  Prolecanitidae Hyatt: 331.
     1898  Ibergiceratidae Haug,tabl.1.
     1922  Prolecanitinae.-Schindewolf: 14.
     1925  Prolecanitidae.-Schmidt: 527.
     1957  Prolecanitidae.-Treatise: L69.
     1960  Prolecanitidae.-Ruzhentsev: 185.
     1962  Prolecanitidae.-Osnovy: 347.
     1962  Prolecanitidae.-Kullmann: 83.
     1963  Prolecanitidae.-Kullmann: 272.
     1965  Prolecanitidae.-Weyer: 453.
     1971  Prolecanitidae.-Ruzhentsev & Bogoslovskaia: 126.
     1972  Prolecanitidae.-Weyer: 318.
     1980  Prolecanitidae.-Kuzina: 35.
     1996  Prolecanitidae.-Riley: 12.

Superfamily Prolecanitaceae

A:   Conch in general smooth, widely evolute to moderately involute, discoidal, with wide or moderately narrow umbilicus.
G:   Ventral lobe simple or trifid. Lateral and umbilical lobes simple, acute or rounded, in some forms denticulate. Total
       number of lobes 10 to 22. Basic sutural formula:  [Germ.] EALUUnI, [Russ.] VLUUn:ID.
       Primary lateral and umbilical lobes (L and U) maintain their identity throughout ontogeny; new elements
       (U1+n, U1+n) were added by successive derivation in saddles of umbilical lobe complex. Succession of subequal
       umbilical lobes decreases in size toward umbilicus.

Family Prolecanitidae Hyatt,1884:

A:   Conch shape widely umbilicate.
B:   Shell surface smooth, growth lines linear or sinuous.
G:   Ventral lobe simple, undivided; suture line on flanks with at least two pointed or bifid lobes. Conch shape widely
       umbilicate. Shell surface smooth, growth lines linear or sinuous.

Subfamily Prolecanitinae Hyatt,1884:

G:   Bellshaped ventral lobe which is constricted orad.

Subfamily Protocanitinae Weyer,1972:

G:   V-shaped ventral lobe, with divergent sides.

Subfamily Eocaninitinae Weyer,1972:

G:   Ventral lobe deep and parallel-sided, orad not narrowed.

Fig. see TAX5556 (sutures of Prolecanitoidea), Fig.5556A (sutures of Prolecanitidae.