| Kuphus(noun, creature, geohistory, chattian) |
| Lacertidae(noun, creature, geohistory, chattian) |
| Lacertoidea(noun, creature, geohistory, paleocene) |
| Lagomorpha(noun, creature, geohistory, paleocene) |
| Lamna(noun, creature, geohistory, paleocene) |
| Lanternfish(noun, creature, geohistory, eocene) |
| Lari(noun, creature, geohistory, eocene) |
| Lates(noun, creature, geohistory, eocene) |
| Latonia(noun, creature, geohistory, chattian) |
| Leiognathidae(noun, creature, geohistory, eocene) |
| Lemuriformes(noun, creature, geohistory, paleocene) |
| Loon(noun, creature, geohistory, eocene) |
| Macropodidae(noun, creature, geohistory, chattian) |
| Macropodiformes(noun, creature, geohistory, chattian) |
| Marsupial(noun, creature, geohistory, paleocene) |
| Megachilid bee(expression, creature, geohistory, eocene) |
| Megachilidae(noun, creature, geohistory, eocene) |
| Megadermatidae(noun, creature, geohistory, rupelian) |
| Melittidae(noun, creature, geohistory, eocene) |
| Microbiotheria(noun, creature, geohistory, paleocene) |