Tardisia
| Tardisia Temporal range: | |
|---|---|
| Fossils of Tardisia | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| (unranked): | †Vicissicaudata |
| Genus: | †Tardisia McCoy et al, 2025 |
| Species: | †T. broedeae |
| Binomial name | |
| †Tardisia broedeae McCoy et al, 2025 | |
Tardisia is an extinct genus of vicissicaudatan arthropod known from the upper Carboniferous Mazon Creek fossil beds in northern Illinois. It is the youngest known member of the Artiopoda outside of the trilobites, at almost 100 million years younger than the next youngest in the Hunsrück Slate and Severnaya Zemlya Formation.