Family

Orthothecidae Syssoiev, 1957

List of species
1. Nephrotheca ruderalis Marek, 1989? | Middle Cambrian (old nomenclature)Middle Ordovician
Klassificering
Organism groupBiota
KingdomAnimalia
PhylumMollusca
ClassHyolitha
OrderOrthothecida
FamilyNovitatidae
Orthothecidae
GenusNephrotheca
Semielliptotheca
FamilyQuadrothecidae