60 Total time slices
| Paleocene | 60 Ma |
| Cretaceous-Paleocene | 65 Ma |
| Late Maastrichtian 2 | 67 Ma |
| Early Late Maastrichtian 2A | 68 Ma |
| Early Maastrichtian 1B (clinolobatus) | 69.7 Ma |
| Campanian-Maastrichtian 3 | 70.0 Ma |
| Campanian-Maastrichtian 2 | 70.4 Ma |
| Campanian-Maastrichtian 1 | 70.8 Ma |
| Late Campanian 10B (reesidei) | 72.1 Ma |
| Late Campanian 9B (compressus) | 73.5 Ma |
| Middle Campanian 8B (scotti) | 77.0 Ma |
| Middle Campanian 7B (perplexus) | 78.2 Ma |
| Middle Campanian 6B (asperiformis) | 80.0 Ma |
| Middle Campanian 5B (maclearni) | 80.4 Ma |
| Middle Campanian 4B (obtrusus) | 80.6 Ma |
| Early Campanian 3 (Baculites sp. weak) | 80.9 Ma |
| Early Campanian 2 (Baculites sp. smooth) | 81.2 Ma |
| Early Campanian 1 (Scaphites hippocrepis) | 82.9 Ma |
| Late Santonian 2 (Desmoscaphites bassleri) | 84.0 Ma |
| Middle Santonian 1 (Clioscaphites veriformis) | 84.9 Ma |
| Late Coniacian 3 (Scaphites depressus) | 87.0 Ma |
| Middle Coniacian 2 (Scaphites ventricosus) | 87.9 Ma |
| Early Coniacian 1 (Inoceramus erectus) | 89.0 Ma |
| Late Turonian 5 (Scaphites whitfieldi) | 89.8 Ma |
| Late Turonian 4 (P. wyomingensis-macombi) | 90.5 Ma |
| Middle Turonian 3 (Prionocyclus hyatti) | 90.9 Ma |
| Middle Turonian 2 (Colignoniceras woollgari) | 92.1 Ma |
| Early Turonian 1 (Watinoceras coloradoense) | 93.2 Ma |
| Late Cenomanian 6 (Sciponocerus gracile) | 94.0 Ma |
| Late Cenomanian 5 (M. mosbyense) | 94.3 Ma |
| Late Cenomanian 4 (P. wyomingense) | 94.9 Ma |
| Middle Cenomanian 3 (C. tarrantense) | 96.0 Ma |
| Early Cenomanian 2 (N. americanus) | 98.1 Ma |
| Early Cenomanian 1 (Neogastroplites haasi) | 98.3 Ma |
| Late Albian 6 (Muddy Low stand) | 100 – 99 Ma |
| Late Albian 5 (Skull Creek High stand) | 105 – 102 Ma |
| Albian 4 (Skull Creek transgression) | 106 Ma |
| Albian 3 (Fall River Low stand) | 107 Ma |
| Albian 2 (Fall River High stand) | 110 – 108 Ma |
| Aptian/Albian (Fall River trans.) | 113 – 111 Ma |
| Aptian 2 | 120 – 115 Ma |
| Aptian 1 | 125 – 120 Ma |
| Barremian 2 | 128 – 125 Ma |
| Barremian 1 | 130 – 128 Ma |
| Hauterivian | 136 – 130 Ma |
| Valanginian | 140 – 136 Ma |
| Berriasian | 145 – 140 Ma |
| Late Jurassic 4 (Kimmeridgian/Tithonian) | 150 – 148 Ma |
| Late Jurassic 3 (Kimmeridgian 2) | 152 – 151 Ma |
| Late Jurassic 2 (Kimmeridgian 1) | 155 – 153 Ma |
| Late Jurassic 1 (Oxfordian) | 161 – 156 Ma |
| Middle Jurassic 5 (Callovian) | 162 – 161 Ma |
| Middle Jurassic 4 (Callovian) | 164 – 163 Ma |
| Middle Jurassic 3 (Bathonian) | 167 – 164 Ma |
| Middle Jurassic 2 (Bajocian) | 170 – 168 Ma |
| Middle Jurassic 1 (Aalenian/Bajocian) | 172 – 170 Ma |
| Early Jurassic 4 | 185 – 175 Ma |
| Early Jurassic 3 | 190 – 185 Ma |
| Early Jurassic 2 | 195 – 190 Ma |
| Early Jurassic 1 | 200 – 195 Ma |