| Caseopsis Temporal range: late Early Permian (Kungurian Age) |
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Class: | Synapsida |
| Order: | Pelycosauria |
| Suborder: | Caseasauria |
| Family: | Caseidae |
| Genus: | Caseopsis |
| Species | |
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Caseopsis was a large pelycosaur that was about 3 metres (10 ft) long. Caseopsis lived in the late Early Permian epoch (Kungurian Age), before the pelycosaurs were replaced by the more advanced therapsids (in the next age). It was a lightly built, agile creature. It may have been possible for this species to outpace and escape large predators such as Dimetrodon.