Calliprotonia sterlitamakensis (Stepanov, 1937) Click on image to magnify Go-Back Calliprotonia sterlitamakensis (Stepanov, 1937) - brachiopod - Pennsylvanian - Gzhelian Stage
Calliprotonia sterlitamakensis (Stepanov, 1937) Click on image to magnify Go-Back
Calliprotonia sterlitamakensis (Stepanov, 1937) - brachiopod - Pennsylvanian - Gzhelian Stage