Representatives of the order Thecamoebina were found in the Jaklovec and Poruba zones of Namurian age. They appear in the layers with a fresh-water or mixed (fresh-water and marine) fauna, and also in unfossiliferous layers lying in those parts of the Jaklovec zone in which only fresh-water faunal bands frequently occur. The acquired material allows the description of some outstanding, well-characterized and easily identificable species. The genus Prantlitina nov. gen. of the order Thecamoebina with two subgenera P. (Prantlitina) nov. subgen. and P. (Prantlitinopsis) nov. subgen. has been established. We place in the subgenus P. (Prantlitina) nov. subgen. the following species: P. (Prantlitina) prantli nov. spec. (genotype and subgenotype), P. (Prantlitina) šustai nov. spec., and P. (Prantlitina) remeši nov. spec. The species P. (Prantlitinopsis) štúri nov. spec. (subgenotype) and representatives of two other species with nom. aperta are placed in the subgenus P. (Prantlitinopsis) nov. subgen.