| 01176 | Meretrix (meretrix) | 2 Floor S12 c247 |
| 01258 | Michelinia multitabulata | 2 Floor S 2 cA4 |
| 01274 | Meekella gigantea | 2 Floor S 1 cA3 |
| 11853 | Mizuhopecten | 2 Floor S8 c229 |
| 11854 | Mizuhopecten | 2 Floor S8 c229 |
| 11871 | Mizuhopecten | 2 Floor S8 c230 |
| 11875 | Macoma tokyoensis MAKIYAMA | 2 Floor S8 c230 |
| 11877 | Mya cuneiformis BOHM | 2 Floor S8 c230 |
| 11878 | Macoma tokyoensis MAKIYAMA | 2 Floor S8 c230 |
| 11886 | Makiyama chitanii | 2 Floor S8 c231 |
| 11892 | Mercenaria | 2 Floor S8 c231 |
| 11903 | Mizuhopecten | 2 Floor S8 c231 |
| 11913 | Mercenaria | 2 Floor S8 c231 |
| 11918 | Mizuhopecten | 2 Floor S8 c231 |
| 11919 | Mizuhopecten | 2 Floor S8 c231 |
| 13929 | Metasequoia | 2 Floor S12 c250 |
| 18790 | Marrella splendens | 2 Floor S10 238 |
| 18797 | Mosasaurus | 2 Floor S12 245 |
| 18816 | Metasequoia | 2 Floor S12 250 |
| 18817 | Metasequoia | 2 Floor S12 250 |
| 19035 | Mercenaria | 2 Floor S12 247 |
| 19057 | Mercenaria | 2 Floor S12 247 |
| 19551 | Mesosaurus braziliensis | 2 Floor S12 245 |