Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
extinction  | |
|---|---|
| RT | biochronology |
| biologic evolution | |
| endangered species | |
| extinct taxa | |
| first occurrence | |
| mass extinctions | |
| optical extinction | |
| paleontology | |
| SN | As of 1981, restricted to paleontology. Before 1981, also used for optical extinction. |