Ammonoids from the type section of the Bogdanovsky Horizon of the South Urals are described.  The section
contains the assemblage characteristic of the lower part of the Homoceras-Hudsonoceras Genus Zone.  The
lowermost Middle Carboniferous Isohomoceras subglobosum Zone is not exposed by the type section.  
Three homoceratid species are described, two of them, Homoceras bellum and Isohomoceras bogdanovskense, are new.