Tergomya - Archinacellida - Archinacellidae
Full reference: E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081
Parent taxon: Archinacellidae according to P. Bouchet et al. 2005
Sister taxa: Archinacellopsis, Barrandicella, Barrandicellopsis, Floripatella, Guelphinacella, Marekicella
Subtaxa: Archinacella alta, Archinacella approximans, Archinacella arca, Archinacella cingulata, Archinacella clochensis, Archinacella davisi, Archinacella deformata, Archinacella deleta, Archinacella depressa, Archinacella elevata, Archinacella estella, Archinacella explanata, Archinacella indianensis, Archinacella instabilis, Archinacella kagawongensis, Archinacella laevis, Archinacella magna, Archinacella melissa, Archinacella norwegica, Archinacella parva, Archinacella patelliformis, Archinacella perovalis, Archinacella powersi, Archinacella prendergasti, Archinacella proprius, Archinacella pulaskiensis, Archinacella richmondensis, Archinacella rostrata, Archinacella rotunda, Archinacella rugatina, Archinacella semicarinata, Archinacella simplex, Archinacella simulatrix, Archinacella stoermeri, Archinacella subcarinata, Archinacella subglobosa, Archinacella subrotunda, Archinacella trentonensis, Archinacella valida, Archinacella wanwanensis
Ecology: epifaunal grazer