ammonites
Stephanozyga nodosa Girty 1915 (snail)

Gastropoda - Prosobranchia - Pseudozygopleuridae

Alternative combinations: Pseudozygopleura (Stephanozyga) nodosa, Zygopleura nodosa

Full reference: G. H. Girty. 1915. Invertebrate paleontology. Missouri Bureau of Geology and Mines 13:263-376

Belongs to Stephanozyga according to P. J. Wagner 2011

Sister taxa: Pseudozygopleura (Stephanozyga) lisaspira, Pseudozygopleura (Stephanozyga) nishimurai, Stephanozyga granda, Stephanozyga lisaspira, Stephanozyga magna, Stephanozyga subnodosa, Nodozyga rugifera, Nodozyga longnorensis

Ecology: epifaunal