| Group/formation name | Group/formation name |
|---|
| Kokoamu - New Zealand | Kongakut - United States |
| Kokoamu Greensand - lower, - New Zealand | Kongkashankou - China |
| Kokoamu Greensand - New Zealand | Konglomeratbank - Ukraine |
| Kokomo - United States | Konglomeratbank 3 - Germany |
| Koktui - Kyrgyzstan | Kongressfjellet - Sticky Keep, - Svalbard and Jan Mayen |
| Koktui Suite - Russian Federation | Kongshuhe - China |
| Kokubu - Japan | Konka - Iran |
| Kokumoto - Japan | Konose/Kamase - Japan |
| Kokuybel'su Suite - Russian Federation | Konose/Koguchi - Japan |
| Kolbay - Kazakhstan | Konose/Oshe - Japan |
| Koldarian Suite - Russian Federation | Konosé - Japan |
| Koldenen-Temir - Kazakhstan | Konovka Beds - Ukraine |
| Koldenentemir - Kazakhstan | Konovka Suite - Ukraine |
| Koldzat - Kazakhstan | Konstantin-El - Upper, - Russian Federation |
| Kollerkogel - Gaisbergsattel, - Austria | Konvunchana/Bugarikta - Dvuroginskii, - Russian Federation |
| Kolonga Suite - Russian Federation | Konyr - Kazakhstan |
| Kolosh - Iraq | Koněprusy - Czechia |
| Kolpak - Kazakhstan | Koobi Fora - Chari, Indet., KBS, Lokochot, Lokochot/Tulu Bor, Lonyumun, Lonyumun/Moiti, Lower Burgi, Moiti, Okote, Okote and KBS, Tulu Bor, Tulu Bor/Lower Burgi, Upper Burgi, indet, - Kenya |
| Kolymbia - Greece | Koopnap - Canada |
| Kom el Shelul - Egypt | Kootenai - United States |
| Komako - New Zealand | Kootenay - Canada |
| Komayama - Japan | Kootenay/Mist Mountain - Canada |
| Kome - Greenland | Kopanaskya - Russian Federation |
| Komichan - Russian Federation | Kopanina - Lower, Upper, Upper Orthoceras Limestone, e2, - Czechia |
| Komnina - Tomea Eksi, - Greece | Kopanskaya - Russian Federation |
| Komstad - Lower, Upper, - Denmark, Sweden | Kopchugay - Turkmenistan |
| Komurlu - Türkiye | Kope - Economy, Fulton, Fulton Shale, McMicken, Southgate, - United States |
| Kondurovkskiy - Russian Federation | Kopieniec - Poland |
| Koneprusy - Czechia | Kopili - Bangladesh |
| Koneprusy Limestone - Czechia | Kopili Shale - India |