|   | 
Locality | 
Layer | 
 
 | 
Algeria, Ahnet, Anou-Tirechoumine | 
Shale of Tirechoumine, up.part | 
 
 | 
Algeria, Gourara (Sahara), Timimoun Sebkha | 
Timimoun 10 km w-sw TIM B2 | 
 
 | 
Algeria, Gourara (Sahara), Timimoun Sebkha | 
Timimoun 10 km w-sw TIM B3 | 
 
 | 
Algeria, Gourara (Sahara), Timimoun Sebkha | 
Timimoun 13.3 km west TIM C8 | 
 
 | 
Algeria, Gourara (Sahara), Timimoun Sebkha | 
Timimoun 14.5 km w-sw TIM C12 | 
 
 | 
China, Guizhou, Kuashan, Shuichengxian | 
Visean | 
 
 | 
China, Yunnan, Baoshan district, Baoshan Block, West Yunnan | 
Qingshuigou Fm., Tn3 or early Viséan | 
 
 | 
Great Britain, England,Lancashire, Crag Beck, Ashnott, 2.4 km SW Newton | 
Hodderense Lmst.Fm., upper 3 m | 
 
 | 
Great Britain, England,Lancashire, Hodder River, Great Falls, E bank | 
Pendleside Lmst.Fm., Mearley Lmst. Mb. | 
 
 | 
Great Britain, England,Lancashire, Hodder River, Great Falls,4.2km SW Cith | 
Hodderense Lmst.Fm. | 
 
 | 
Great Britain, England,Lancashire, Leagram,Hell Clough,3.25km NNE of Clipp. | 
Hodderense Lmst.Fm., lowest 2 m of sect. | 
 
 | 
Great Britain, Wales, Ramsgrove near Rhossili, Gower | 
S1 | 
 
 | 
Great Britain, Wales,South, Caswell Bay, Gower | 
C2 | 
 
 | 
Iran, Central Iran, Anarak, close Kuh-e-Lakh, 22 km SW of A. | 
Beyrichoceras Stage,undiffer.;sample 141 | 
 
 | 
Morocco, Tafilalt, Dar Kaoua, 12 km S of | 
early U.Viséan, undifferentiated | 
 
 | 
Morocco, Tafilalt, Gara el Itima,ENE Taouz,Hamada Guir | 
GI-1,Klug et al.,up.Asbian | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 3a, Kos'vinskiy gorizont | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 4, Kos'vinskiy gorizont | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 5, Kos'vinskiy gorizont | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 6, Nortnichskiy gorizont | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 7, Nortnichskiy gorizont | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 8, Nortnichskiy gorizont | 
 
 | 
Russian Federation, Komi, N.Urals, Kozhim River | 
Sample 9, Nortnichskii beds | 
 
 | 
Russian Federation, Novaia Zemlia, N. Island, Berkha Isl., vyb.1 (Kuz.& Yat.1999) | 
Beyrichoc.-Goniatites GZ,undifferentiat. | 
 
 | 
Russian Federation, Novaia Zemlia, N. Island, Berkha Isl., vyb.2 (Kuz.& Yat.1999) | 
Beyrichoc.-Goniatites GZ,undifferentiat. | 
 
 | 
Russian Federation, Novaia Zemlia, N. Island, Berkha Isl., vyb.3 (Kuz.& Yat.1999) | 
Beyrichoc.-Goniatites GZ,undifferentiat. | 
 
 | 
Russian Federation, Novaia Zemlia, S. island, Solnechnyi rivulet,Servernaia Tainaia | 
U.Viséan, unrecognized | 
 
 | 
Russian Federation, Urals,N (undifferentiated), Bol'shaya Nadota River | 
Loc.Nd5,sample 31 | 
 
 | 
Russian Federation, Urals,N (undifferentiated), Bol'shaya Nadota River | 
Loc.Nd9,sample unrecognized | 
 
 | 
Spain, Southwest Spain, Los Santos de Maimona, La Alameda 1 | 
Beyrichoceras Genozone |