| Group/formation name | Group/formation name |
|---|
| Kirchstein - Germany | Kishenehn - Coal Creek, Upper, - Canada, United States |
| Kirenskian-Kudrian/Ust'Stolbovaya - Russian Federation | Kishima - Japan |
| Kirikiri - New Zealand | Kishima/Hakai - Nagashima, - Japan |
| Kirikiri/Kowhai Point Siltstone - New Zealand | Kishima/Kishima - Japan |
| Kirimiya - Saburaishi, - Japan | Kistedal - Norway |
| Kirkby Moor - United Kingdom | Kistinka Suite - Georgia |
| Kirkby Moor Flags - United Kingdom | Kita-ama - Japan |
| Kirkcolm - Tweeddale, - United Kingdom | Kitaigorod - Ukraine |
| Kirker - United States | Kitaura - Japan |
| Kirkerud/Furuberget - Upper, Upper Beds, - Norway | Kitaygorod - Cherchen, Maryanov, - Ukraine |
| Kirkfield - Canada | Kithar - Pakistan |
| Kirkkavak - Türkiye | Kittigazuit - Canada |
| Kirkwood - Alloway Clay, Asbury Park, Shiloh marl, lower, - United States | Kiuragi - Japan |
| Kirpichnikov suite - Russian Federation | Kiwada - Japan |
| Kirpichnikov suite/Kirpichnikov - Russian Federation | Kiya - Russian Federation |
| Kirsanovskaya - Russian Federation | Kiyokawa - Japan |
| Kirthar - Pakistan | Kiyu - Uruguay |
| Kirthar - India | Kizelov - Russian Federation |
| Kirthar/Domanda - upper, - Pakistan | Kizi - Russian Federation |
| Kirtland - De-na-zin, De-na-zin?, Farmington, Hunter Wash, Hunter Wash?, Naashoibito, - United States | Kizidjilginskii - Tajikistan |
| Kirtland? - De-na-zin?, Hunter Wash?, - United States | Kizilagac - Türkiye |
| Kirtonryggen - Bassisletta, Nordporten, Spora, - Norway | Kizildjilginskii - Tajikistan |
| Kirusillas - Bolivia | Kizildzhilga - Tajikistan |
| Kisagata shell bed - Japan | Kizilirmak - Lower, Upper, - Türkiye |
| Kisatibi - Georgia | Kizilli - Türkiye |
| Kiscell - Hungary | Kjørrven - Norway |
| Kiscell Clay - Hungary | Klabava - Euloma Shale, Olesna, Olešná, Olešná Shales, - Czechia |
| Kisgerecse - Hungary | Kladno - Nyrany, Nýřany, Radnice, - Czechia |
| Kisgerecse - Hungary | Klasaman - Jef Lio, Klabelom, Klamesin Sandstone, Malaloenoe, - Indonesia |
| Kisgerecse Marl - Hungary | Klasen - Sweden |