Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
problematic fossils  | |
|---|---|
| NT | Calcisphaerulidae |
| Dacryoconarida | |
| problematic microfossils | |
| UF | problematical fossils |
| RT | paleontology |
| fossils | |
| Stromatoporoidea | |
| chemical fossils | |
| fossilization | |
| nannofossils | |
| miscellanea | |
| Receptaculitaceae | |
| Hyolithes | |
| Tentaculites | |
| Tentaculitida | |
| Tentaculitidae | |
| SN | Before 1978, also search fossils AND (problematical OR problematic OR problematic organisms). Before 1981, Hyolithidae was included as a narrower term, now see Hyolithes. Before 1981 Receptaculitaceae was included as a narrower term. |