Ctenosauriscus
| Ctenosauriscus Temporal range: Early Triassic,
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| Skeletal reconstruction and size comparison (human: 175cm tall) | |
| Part slab of the holotype fossil of Ctenosauriscus koeneni | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Pseudosuchia |
| Clade: | †Poposauroidea |
| Family: | †Ctenosauriscidae |
| Genus: | †Ctenosauriscus Kuhn, 1964 |
| Species | |
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Ctenosauriscus (meaning "Ctenosaura-like") is an extinct genus of sail-backed poposauroid archosaur from Early Triassic deposits of Lower Saxony in northern Germany. It gives its name to the family Ctenosauriscidae, which includes other sail-backed poposauroids such as Arizonasaurus. Fossils have been found in latest Olenekian deposits around 247.5-247.2 million years old, making it one of the first known archosaurs.