Superfamily of flatworms
Geoplanoidea is a superfamily of freshwater and land triclads that comprises the species of the Geoplanidae and the Dugesiidae families.
Dugesiidae and Geoplanidae share a duplication of the cluster that codifies for the 18S ribosomal RNA .[ 2]
Phylogeny
Phylogenetic supertree after Sluys et al., 2009:[ 1]
References
^ a b Sluys, R.; Kawakatsu, M.; Riutort, M.; Baguñà, J. (2009). "A new higher classification of planarian flatworms (Platyhelminthes, Tricladida)". Journal of Natural History . 43 (29– 30): 1763– 1777. doi :10.1080/00222930902741669 .
^ Carranza, S.; Littlewood, D. T.; Clough, K. A.; Ruiz-Trillo, I.; Baguñà, J.; Riutort, M. (1998). "A robust molecular phylogeny of the Tricladida (Platyhelminthes: Seriata) with a discussion on morphological synapomorphies" . Proceedings of the Royal Society B: Biological Sciences . 265 (1396): 631– 640. doi :10.1098/rspb.1998.0341 . PMC 1689013 . PMID 9881470 .