Santos-Silva et al., 2013: 221

Prionocalus Whymperi Bates, 1891: 36 ([Syntypes] Milligalli (6200 feet) MNHN) [misppelling]
Psalidognathus (Prionocalus) Buckleyi; Lameere, 1910: 376 [part]
Prionocalus whymperi; Quentin & Villiers, 1983: 223 [revalidation, Lectotype][misspelling]
Prionacalus whymperi; Monné, 1995: 61 [catalogue]

Prionocalus trigonodes Bates, 1891: 37 ([Syntypes ?] La Mona (under 200 feet) MNHN) [misppelling] (Quentin & Villiers, 1983: 224 [synonymie P. buckleyi, Lectotype] ; Santos-Silva et al., 2013: 218 [synonymie])
Psalidognathus (Prionocalus) trigonodes; Lameere, 1910: 377 (Lameere, 1913: 65 [catalogue]

Prionocalus giovannii Hüdepohl, 1985: 117 ([Holotype] Ecuador, Santo Domingo de los Colorados ZSMC) [misppelling] (Santos-Silva et al., 2013: 218 [synonymie])
Prionacalus giovannii; Monné, 1995: 60 [catalogue]
Prionacalus giovanni; Di Iorio, 2003: 3