Pennsylvanian Gastropods of the Suborders Murchisoniina Cox et Knight, 1960 and Sinuspirina Mazaev subordo nov. from the Central Regions of the Russian Platform: Morphology, Taxonomy, and Phylogeny. Paleontological Journal, 45(12), Dec 2011: 1533-1599. 1571 [Zoological Record Volume 151]