Gastropoda - Murchisoniina - Murchisoniidae
Alternative spelling: Murchisonia (Cyrtostropha)
Full reference: J. G. Donald. 1902. On some of the Proterozoic Gasteropoda which have been referred to Murchisonia and Pleurotomaria, with descriptions of new subgenera and species. Quarterly Journal of the Geological Society of London 58(4):313-339
Parent taxon: Murchisoniidae according to P. J. Wagner 2011
Sister taxa: Aclisina, Arribazona, Barroisocaulus, Bellazona, Biangularia, Brilonella, Cheilotomona, Cibecuia, Crenulazona, Devonocerithioides, Domiporta, Farewellia, Glyphodeta, Helicospira, Leptorima, Lodanaria, Loxosonia, Mesocoelia, Michelia, Micrentoma, Morania, Murchisonia, Parahormotomina, Protospira, Pseudoaclisina, Trypanocochlea, Vebericochlis, Vistilia, Vladanella, Wuxuanella
Subtaxa: Cyrtostropha bicincta, Cyrtostropha cava, Cyrtostropha coralli, Cyrtostropha macrospira, Cyrtostropha monoliniformis, Cyrtostropha morinensis, Cyrtostropha obscura, Cyrtostropha pacifica, Cyrtostropha salteri, Cyrtostropha scitula, Cyrtostropha sculpta, Cyrtostropha subplicata, Cyrtostropha torquata
Ecology: facultatively mobile epifaunal suspension feeder