| Version | Summary | Created by | Modification | Content Size | Created at | Operation |
|---|---|---|---|---|---|---|
| 1 | Dean Liu | -- | 1000 | 2022-11-07 01:39:42 |
Nanotyrannus ("dwarf tyrant") is a likely invalid genus of tyrannosaurid dinosaur. It is known from only a single certain specimen, CMNH 7541, that was originally proposed to be a distinct genus based on a handful of cranial and postcranial features. It has since been suggested to be juvenile of the contemporary species Tyrannosaurus rex, based on a lack of mature specimens and the proposed diagnostic traits being variable within the species, a conclusion that is not universally accepted.