Cincinnulus argutus (Nees & Mont. ex Nees) Dumort.
Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Cincinnulus Dumortier, 1822)
Kantius amazonicus Spruce
Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Kantius S.F.Gray, 1821)
Kantius goebelii Schiffner
Homotypic synonym according to GBIF classification (Originally found in sources as synonym of Calypogeia goebelii (Schiffner) Schiffner)
Kantius muellerianus Schiffner
Homotypic synonym according to GBIF classification (Originally found in sources as synonym of Calypogeia muelleriana (Schiffn.) K.Müll.)
Kantius rhombifolius Spruce
Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Kantius S.F.Gray, 1821)
Kantius sphagnicola Arnell & J. Perss.
Homotypic synonym according to GBIF classification (Originally found in sources as synonym of Calypogeia muelleriana f. sphagnicola (Arnell & J.Perss.) Schljakov)
Mnium fissum L.
Homotypic synonym according to GBIF classification (Originally found in sources as accepted taxon within Mnium)
? trichomanis L.
Proparte synonym according to GBIF classification (Originally found in sources as doubtful taxon within Calypogeiaceae)