Full reference: F. H. Gunnell. 1933. Conodonts and fish remains from the Cherokee, Kansas City, and Wabaunsee Groups of Missouri and Kansas. Journal of Paleontology 7(3):261-297
Parent taxon: Selachii according to F. H. Gunnell 1933
Sister taxa: Anacoracoidei, Asterospondyli, Carcharidae, Carchariidae, Cestraciontidae, Ctenacanthoidei, Fortscottella, Galeomorphi, Hammondella, Heterodontoidea, Hexanchoidea, Idiacanthus, Kirkella, Moreyella, Myliobatidae, Notidanidae, Notidanoidei, Pristidae, Pristiophoridae, Psammodontidae, Rajidae, Scyllidae, Squalimorphi, Tectospondyli, Torpedinidae, Trygonidae
Subtaxa: Cooperella eroda, Cooperella rectistriata, Cooperella selluliformis, Cooperella striata, Cooperella striatula, Cooperella subsulcata, Cooperella typicalis
Ecology: nektonic carnivore