| Group/formation name | Group/formation name |
|---|
| hall/Hangvar - Sweden | Hamilton/Hungry Hollow - Canada |
| Halliku - Estonia | Hamilton/Jaycox - United States |
| Halls Peak - Australia | Hamilton/Kiskatom - United States |
| Hallstatt - Hangendgraukalk, Hangendrotkalk, - Austria, Bosnia and Herzegovina, Germany, Greece | Hamilton/Kiskatom-Ashokan - United States |
| Hallstatt Facies/Lercheck Limestone - Germany | Hamilton/Lower Hamilton - United States |
| Hallstatt Limestone - Austria | Hamilton/Ludlowville - Centerfield, Centerfield , Centerfield Limestone, Ivy Point, Ledyard, Ledyard Shale, Wanakah, Wanakah Shale, Wanakah Shale / Darien Center, Windom Shale, - United States |
| Hallstätt - Slovakia | Hamilton/Mahantango - Chaneysville, Frame Shale, Gander Run, Montebello, Montebello Sandstone, Upper part of Upper Shale, Upper shale, lower part of upper shale, lower shale, - United States |
| Hallstätterkalk - Germany, Slovakia | Hamilton/Marcellus - Cardiff Shale, Chittenango, Oatka/Berne, Solsville, - United States |
| hall/Tofta - Sweden | Hamilton/Marcellus Shale - Stony Hollow, - United States |
| Halobienschiefer - Austria | Hamilton/marine Moscow - United States |
| Halstatt - Austria, Germany | Hamilton/Moscow - "New Lisbon", Fisher Gully, Gage Gully, Gage Gully (Simpson Creek Bed), Kashong, Kashong Shale, KashongShale, Manorkill shale and sandstone, Spezzano, Taunton, Taunton (Fall Brook Bed), Windom, Windom Shale, lower Windom, lowest Windom, middle Windom, upper Windom, - United States |
| Hamam - Jordan | Hamilton/Moscow eq. - United States |
| Hamar Laghdad Limestone - Lower, - Morocco | Hamilton/Moscow Shale - Windom, - United States |
| Hambast - Iran | Hamilton/Mount Marion - United States |
| Hambergfjellet - Svalbard and Jan Mayen | Hamilton/Panther Mountain - United States |
| Hambleton Oolite - United Kingdom | Hamilton/Platekill eq. - United States |
| Hamburg - United States | Hamilton/Plattekill - United States |
| Hamilton - Beechwood Limestone, - United States | Hamilton/Skaneateles - Berwyn, Centerfield, Delphi Station, Levanna, Levanna Shale, Mottville, Motville , Stafford, - United States |
| Hamilton/Arkona - Canada | Hamilton/Tully - Apulia, Gilboa, Laurens, West Brook, - United States |
| Hamilton/Arkona Shale - Canada | Hamilton/Tully Pyrite - United States |
| Hamilton/Ashokan - United States | Hamilton/Union Springs - United States |
| Hamilton/Bellvale - United States | Hamilton/Widder - Lower, - Canada |
| Hamilton/Bellvale Sandstone - United States | Hammamiyat - Saudi Arabia |
| Hamilton/Below Genesee - United States | Hammett - United States |
| Hamilton/Centerfield Limestone - United States | Hammett Shale - United States |
| Hamilton/Cherry Valley - United States | Hamou-Rhanem - Morocco |
| Hamilton/Continental Moscow - United States | Hampden - New Zealand |
| Hamilton/Delphi - United States | Hampen Marly - United Kingdom |
| Hamilton/Gilboa - United States | Hampshire - United States |
| Hamilton/Hamilton - upper Windom, - United States | Hampton - Eagle City Limestone, - United States |