|   | 
Locality | 
Layer | 
 
 | 
Algeria, Monts d'Ougarta, Erg el Djemel | 
Eifelian,upper | 
 
 | 
Algeria, Monts d'Ougarta, Erg el Djemel | 
Givetian,lower | 
 
 | 
Algeria, Saoura Valley, Bechir | 
Eifelian,upper | 
 
 | 
Algeria, Saoura Valley, Béni Abbès,SW of | 
Eifelian,upper | 
 
 | 
Algeria, Saoura Valley, Béni Abbès,SW of | 
Givetian,lower | 
 
 | 
Algeria, Saoura Valley, Saoura Valley, Km 30 | 
Eifelian,upper | 
 
 | 
Austria, Carnic Alps (Austria), Wolayer See | 
Eifelian, layer unrecognized | 
 
 | 
Austria, Steiermark, Kanzel | 
Givetian, layer unrecognized | 
 
 | 
Bolivia, La Paz, Chiarumani | 
Devonian,middle | 
 
 | 
Canada, Alberta, Near Banff, Exshaw Creek | 
Banff Shale | 
 
 | 
Canada, British Columbia, Mount Halkett, N of Alaska Highway | 
Dunedin Fm. | 
 
 | 
Canada, NW Territor.+Arctic Islands, Bosworth Creek | 
unnamed | 
 
 | 
Canada, NW Territor.+Arctic Islands, Carnwath River | 
Fort Creek Shale | 
 
 | 
Canada, NW Territor.+Arctic Islands, Francis Creek | 
unnamed | 
 
 | 
Canada, NW Territor.+Arctic Islands, Funeral Range | 
Funeral Fm. | 
 
 | 
Canada, NW Territor.+Arctic Islands, Northern Arnica Range | 
Funeral Fm. | 
 
 | 
Canada, NW Territor.+Arctic Islands, Thunder River Mouth, 45 mls NNE of | 
unnamed | 
 
 | 
Canada, Yukon, Hungry Lake | 
Fort Creek Shale | 
 
 | 
Canada, Yukon, Ogilvie River II | 
Fort Creek Shale | 
 
 | 
China, Yunnan, Baoshan district, Baoshan Block,W.Yunnan (in Chinese) | 
Middle Devonian, Songlingou Fm. | 
 
 | 
France, Bretagne, Lanvoy | 
Kersadiou Fm. | 
 
 | 
France, Bretagne, Quelern | 
Quelern Fm. | 
 
 | 
France, Montagne Noire, Cabrières, Pic de Vissou | 
Eifelian | 
 
 | 
France, Montagne Noire, Cabrières, Pic de Vissou | 
Givetian | 
 
 | 
Germany, Eifel, Gees | 
upper Eifelian ? | 
 
 | 
Germany, Eifel, Pelm near Gerolstein | 
Eifelian | 
 
 | 
Germany, Harz, Grumbacher Teich | 
Goslar Shales | 
 
 | 
Germany, Harz, Schalker Teich | 
Goslar Shale | 
 
 | 
Germany, Harz, Schulenberg | 
Eifelian | 
 
 | 
Germany, Harz, Wieda and Huttal region | 
Eifelian | 
 
 | 
Germany, Rhenish Mountains, Bicken | 
Günterod Lst. | 
 
 | 
Germany, Rhenish Mountains, Dechenhöhle vicinity | 
Tannenkopf Shale | 
 
 | 
Germany, Rhenish Mountains, Greifenstein | 
Greifenstein Lst. | 
 
 | 
Germany, Rhenish Mountains, Günterod | 
Günterod Lst. | 
 
 | 
Germany, Rhenish Mountains, Haigerseelbach | 
Eifelian | 
 
 | 
Germany, Rhenish Mountains, Holthausen near Schmallenberg | 
Fredeburger Schiefer | 
 
 | 
Great Britain, England,Cornwall, Booby's Bay | 
Eifelian | 
 
 | 
Great Britain, England,Cornwall, Cant Hill, St. Minver | 
Givetian | 
 
 | 
Great Britain, England,Cornwall, Constantin Bay, Upton Green | 
Givetian | 
 
 | 
Great Britain, England,Cornwall, Mother Ivey's Cottage, e of | 
lower Givetian | 
 
 | 
Great Britain, England,Devonshire, Englebourne near Harberton | 
Eifelian | 
 
 | 
Great Britain, England,Devonshire, Mudstone Bay, Brixham | 
Eifelian | 
 
 | 
Kazakhstan, Semipalatinskaya Obl., Karboga River | 
Givetian | 
 
 | 
Mauritania, Tighirt, l'Amgala | 
Eifelian | 
 
 | 
Morocco, Rabat, SE of, Dechra Ait Abdallah | 
Eifelian,upper | 
 
 | 
Morocco, Skoura, Koudia Tizi n'Ouourti | 
Eifelian | 
 
 | 
Morocco, Tafilalt, Aoinet Legra | 
Eifelian | 
 
 | 
Morocco, Tafilalt, Bou Tcharafine (Tchafrine) | 
Upper Eifelian | 
 
 | 
Morocco, Tafilalt, Djorf | 
Eifelian,upper | 
 
 | 
Morocco, Tafilalt, Erfoud | 
Eifelian | 
 
 | 
Morocco, Tafilalt, Gaat Foum Yeraifa,Akka | 
ensensis Z. | 
 
 | 
Morocco, Tafilalt, Gara n'Douar | 
Eifelian | 
 
 | 
Morocco, Tafilalt, Hachguig | 
Givetian,lower | 
 
 | 
Morocco, Tafilalt, Hamar Laghdad | 
Upper Eifelian | 
 
 | 
Morocco, Tafilalt, Jebel Ouaoufilal East | 
Eifelian, unrecognized | 
 
 | 
Morocco, Tafilalt, Kreb Amerloh | 
Eifelian,upper | 
 
 | 
Morocco, Tafilalt, Ma Fedla | 
Eifelian | 
 
 | 
Morocco, Tafilalt, Tadaout | 
Eifelian | 
 
 | 
Morocco, Tafilalt, Tingheras | 
Givetian | 
 
 | 
Morocco, Tafilalt, Tinjad | 
Eifelian | 
 
 | 
Russian Federation, Archangel'sk.Obl.(N-Russia), Bezymyannyy, SW-slope of Pai-Khoi | 
Givetian | 
 
 | 
Russian Federation, Komi, N.Urals, B.Elets River, above Eletskiy | 
Givetian | 
 
 | 
Spain, León, Portilla de Luna | 
Eifelian | 
 
 | 
Spain, León, Sagüera, Alto de la Peñas | 
Givetian | 
 
 | 
Spain, Palencia, Arauz Region, Puerto de Arauz | 
7 | 
 
 | 
Spain, Palencia, Buraniegas Hill NW of Lebanza | 
Eifelian | 
 
 | 
Spain, Palencia, El Calero Creek, Carrión River | 
Eifelian | 
 
 | 
Spain, Palencia, Lezna | 
Eifelian | 
 
 | 
Spain, Palencia, Monderrio | 
Eifelian | 
 
 | 
USA, Iowa, Linn Co., Otter Creek Township | 
Cedar Valley Lst. | 
 
 | 
USA, Maryland, Romney, 15 mls E of | 
Romney Fm., basal part of | 
 
 | 
USA, Maryland, Short Gap, 8 mls. SW of, Cumberland | 
Romney Shale | 
 
 | 
USA, New York (undifferentiated), Cherry Valley, 4.3 km NW of | 
Chittenango Shale | 
 
 | 
USA, New York (undifferentiated), Cherry Valley, w of | 
Werneroceras bed | 
 
 | 
USA, New York (undifferentiated), East Springfield, Oliver cemetery | 
Onondaga Lst., Nedrow Member | 
 
 | 
USA, New York (undifferentiated), Norton's Landing, Cayuga Lake | 
Hamilton Beds | 
 
 | 
USA, New York (undifferentiated), Owasco | 
Hamilton Fm. | 
 
 | 
USA, New York (undifferentiated), Skaneateles Lake | 
Hamilton Fm. | 
 
 | 
USA, New York, Cayuga Co., Ludlowville | 
Hamilton Shale | 
 
 | 
USA, New York, Chenango Co., Sherburn | 
Hamilton beds | 
 
 | 
USA, New York, Madison County, Munnsville, 2 mls sw,  Oneida Creek road | 
Cherry Valley Limestone | 
 
 | 
USA, Ohio, Delaware Co., O'Shaunessy dam, Scioto River | 
Columbus Lst. | 
 
 | 
USA, Ohio, Falls of the Ohio | 
Sellersburg Lst. | 
 
 | 
USA, Ohio, Franklin Co., Dublin | 
Columbus Lst. | 
 
 | 
USA, Virginia, Roanoke Co., Catawba Mt., SE slope of, W of Salem | 
Millboro Shale |