proleptomonas proleptomonas proleptomonas is a genus of coprophilic protists, containing the single species proleptomonas faecicola. it belongs to the phylum cercozoa, although it was previously considered the only free-living kinetoplastid. it is the only member of family proleptomonadidae. proleptomonas scientific classification domain: eukaryota clade: diaphoretickes clade: sar phylum: cercozoa class: sarcomonadea order: glissomonadida suborder: sandonina family: proleptomonadidaehowe, bass, vickerman, chao & cavalier-smith, 2009 genus: proleptomonaswoodcock, 1916 species: p. faecicola binomial name proleptomonas faecicolawoodcock, 1916