Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropodae
Subclassis: Orthogastropoda
Superordo: Heterobranchia
Ordo: Pulmonata
Subordo: Eupulmonata
Clade: Stylommatophora
Cladus: Orthurethra
Informal group: Sigmurethra
Superfamilia: Orthalicoidea
Familia: Orthalicidae
Subfamiliae: Amphibuliminae - Bulimulinae - Orthalicinae - Incertae sedis
References
Breure, A.S.H. 2009: New Orthalicidae (Mollusca, Gastropoda) from Venezuelan Guayana: unravelling secrets from the Lost World. Zootaxa, 2065: 25-50. Abstract & excerpt
Breure, A.S.H.; Borrero, F.J. 2008: An annotated checklist of the land snail family Orthalicidae (Gastropoda: Pulmonata: Orthalicoidea) in Ecuador, with notes on the distribution of the mainland species. Zootaxa, 1768: 1-40. Abstract & excerpt
Breure, A.S.H.; Schlögl, J. 2010: Additional notes on Orthalicidae from the Chimantá massif, Venezuelan Guayana, with descriptions of new species of Plekocheilus Guilding, 1828 (Mollusca: Gastropoda). Zootaxa, 2416: 51–60. Preview
Orono, E.S. 2007: Taxonomic review of the Spixia pyriformis species complex (Gastropoda: Pulmonata: Odontostominae). Zootaxa, 1498: 1-25. Abstract & excerpt
Pizá, J.; Cazzaniga, N.J. 2003: Redescription, shell variability and geographic distribution of Plagiodontes dentatus (Wood, 1828) (Gastropoda: Orthalicidae: Odontostominae) from Uruguay and Argentina. Zootaxa, 154: 1-23. Abstract & excerpt
