Czechia: Motol formation, Spain: Bádenas formation, Estonia: Sakla formation, Rootsiküla formation, Jamaja formation, Ukraine: Bagovytsya formation, Kytaigorod formation, Sweden: Cyrtograptus shale, Colonus shale, Visby formation, Norway: Steinsfjorden formation, United Kingdom: Much Wenlock limestone formation, Coalbrookdale formation, United States of America: Waldron shale, Rochester shale, Irondequoit limestone, Racine dolomite, Cedarville dolomite, Vernon formation, Canada: Rochester shale, Eramosa formation, Irondequoit limestone, Bolivia: Lipeón formation, Kirusillas formation, Iran: Dahaneh-Kalut formation, Kazakhstan: Egizkara formation, Pakistan: Panjpir formation