УДК 595.336.1
Beyrichicopina
код УДК
описание
примечания
595.336.11
Beyriehiacea
595.336.12
Drepanellacea
595.336.13
Hollinacea
595.336.14
Kirkbiacea
595.336.15
Oepikellacea
595.336.16
Primitiopsacea
595.336.17
Youngiellacea
595.336.18
Puniacacea