List of lost dinosaur specimens
This list of lost, damaged, or destroyed dinosaur specimens enumerates those fossil dinosaur specimens that have been discovered only to be lost or damaged after initial documentation. Some of these specimens which had gone missing were later recovered as well.
Uncollected specimens
| Nickname | Taxon | Age | Unit | Country | Notes | Images |
Nose Mountain theropod track | Tyrannosauridae | Maastrichtian | Wapiti Formation | Canada | Single highly pathological tyrannosaur footprint that was buried under a landslide before it could be collected |