“…?Antarctica, unknown geological unit, Givetian (Harper et al, 2010); South Africa, Witterberg Group, Givetian–Frasnian (Boucot et al, 1983a; Penn-Clarke et al, 2018; Penn-Clarke, 2019); Germany, Lower Dark and Neichnerberg formations, Pragian–Emsian (Fuchs, 1982; Ubelacker et al, 2016); ?Australia, Cocktatoo Formation, Frasnian (Roberts, 1971); Belgium, unknown formation, Pragian–Emsian (Boucot et al, 1995); Bolivia, Huamampampa, Belén, and Sicasica formations, late Eifelian–?Frasnian (Isaacson, 1977, 1993; for age see Blieck et al, 1996; Troth et al, 2011); Brazil, São Domingos, Maecuru, Ererê, Pimenteira, and Cabeças formations, middle/late Eifelian–Givetian (Suárez-Riglos, 1967; Fonseca and Melo, 1987; Melo, 1988; this paper); Canada, Torbrook Formation, Lochkovian (Boucot, 1999); Colombia, Floresta and Gutierrez formations, ?Emsian–Frasnian (Caster, 1939; Morales, 1965; Barrett, 1986); Chile, Zorritas Formation, Eifelian or Givetian (Isaacson et al, 1985; Isaacson, 1993; Boucot et al, 1995, 2008); England, unknown formation, Pragian–Emsian (Boucot et al, 1995); Morocco, unknown formation, Pragian–Givetian (Jansen, 2001; Harper et al, 2010; Halamski and Balinski, 2013); France, unknown formation, Givetian (Rachebouef in Boucot et al, 1995); Central Sahara (Algeria and Niger), Tamesna Basin, Pragian–Givetian (Mergl and Massa, 2004); United States of America, Beechwood Limestone Member, Silica, ”Beers Hill”, Portage, Ludlowville and Mahantango formations, Givetian–Frasnian (Williams, 1913; Ellison, 1965; Kesling and Chilman, 1975; McGhee and Sutton, 1985); Spain, Salobral Formation, Givetian (Carls, 1988; Carls and Valenzuela-Ríos, 2002); Libya, Aouinet Ouenine II and Idri formations, ?Pragian–Frasnian (Freulon, 1964; Havlicek and Rohlich, 1987; Mergl and Massa, 1992); Mauritania, Aratane Formation, ?Pragian–Givetian (LeMaître, 1952; Sougy, 1964; Rachebouef et al, 2004); Czech Republic, Drakov Quartzite, Pragian (Isaacson and Chlupac, 1984); Peru, Cabanillas Formation, ?Eifelian (Newell, 1949; for age see Laubacher et al, 1982); Venezuela, Caño Grande and Caño del Oeste formations, ?Early Devonian–Givetian (Sanchez and Benedetto, 1983).…”