Retymaijychampsa
| Retymaijychampsa Temporal range: Middle–Late Triassic,   | |
|---|---|
| Holotype specimen | |
| Skeletal reconstruction with known bones in white | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Reptilia | 
| Clade: | Archosauromorpha | 
| Clade: | Archosauriformes | 
| Clade: | †Proterochampsia | 
| Family: | †Proterochampsidae | 
| Clade: | †Proterochampsinae | 
| Genus: | †Retymaijychampsa Müller, 2025  | 
| Species: | †R. beckerorum  | 
| Binomial name | |
| †Retymaijychampsa beckerorum Müller, 2025  | |
Retymaijychampsa is an extinct genus of proterochampsid archosauriforms from the Mid–Late Triassic Santa Maria Formation (Paraná Basin) of Brazil. The genus contains a single species, R. beckerorum, known from a complete right hindlimb.