Locality	Layer
	Algeria, Mouydir, Oued Temertasset	Argiles de Teguentour
	Belgium, Hainaut, Vaulx, Cherq or Calonne quarry	Calcaire de Calonne
	Great Britain, England,Cornwall, Heathfield Farm	Tournaisian
	Russian Federation, South Urals (undifferentiated), Usuili River, unrecorded	Viséan, early, unrecorded